助手标题  
全文文献 工具书 数字 学术定义 翻译助手 学术趋势 更多
查询帮助
意见反馈
   相对宽度 的翻译结果: 查询用时:0.057秒
图标索引 在分类学科中查询
所有学科
公路与水路运输
水利水电工程
数学
物理学
化学
更多类别查询

图标索引 历史查询
 

相对宽度
相关语句
  relative width
     Results show that the best spiral structure parameter after optimizing is: relative width of spiral k_1=0.5,relative depth of slot k_2=0.3,spiral angle α=21.5°.
     优化后的最佳螺旋结构参数为:螺旋相对宽度k1=0.5,相对槽深k2=0.3,螺旋角α=21.5;
短句来源
     The relative width of 3dB band width of crystal wave filter is 1%,but the width for the quartz is only 0.4%.
     晶体滤波器 3dB带宽的相对宽度为1%,而石英仅为 0 .4%。
短句来源
     adopting volute width change method,the regression orthogonal design is carried out so that the functional relationship between sound pressure level A and volute relative width is obtained.
     采用改变蜗壳宽度的办法,对其进行回归正交设计,得出A声压级与蜗壳相对宽度的函数关系式。
短句来源
     The results of the physical model tests indicate that the transmission coefficient significantly decreases by about twenty percent at the range of relative width from 0.1 to 0.2, compared with the traditional open type breakwaters.
     试验研究表明,相对宽度在0.1~0.2范围内,该结构同传统的透空式防波堤相比,透射系数可以降低20%左右。
短句来源
     The relative width of residual alveolar ridge in the experimental group 2,4,8 weeks after operation were higher than that in the control group,and there were significant differences between the experimental group and the control group(P<0.05).
     术后2、4和8周实验组剩余牙槽嵴的相对宽度高于对照组(P<0.05)。
短句来源
更多       
  relative widths
     RELATIVE WIDTHS OF CLASSES OF MULTIVARIATE DIFFERENTIABLE FUNCTIONS IN THE SPACE L_2(T~d)
     多变量可微函数类在L_2尺度下的相对宽度
短句来源
     The relative widths of classes of multivariate differentiable functions in the space L 2(T d) are discussed. The conditions are determined under which the relative widths are equal to the Kolmogorov n-widths on the function classes. And the exact constants of the relative widths are given.
     研究了由重拉普拉斯导数及混合导数所确定的多变量可微函数类在L2空间中的相对宽度,确定了该宽度与 相应kolmogorovn 宽度相等的条件,同时得到相对宽度的精确常数.
短句来源
  “相对宽度”译为未确定词的双语例句
     Method: The patients with spondylolysis of L5 are divided into two groups,16 patients with L4-5 disc hernia and the other 16 patients with L5 spondylolisthesis,then the relative thickness (RT)of L5 transverse process of the two groups was compared with.
     方法:分析L5峡部裂患者的临床资料,随机抽取病例分为两组:16例合并L4-5椎间盘突出、16例合并L5滑脱,对照比较两组病例间的L5横突的相对宽度(RT值)。
短句来源
     Numerical simulation also shows that the higher the initial relative peak power of higher-order solitons is,the higher compression ratio and compressed peak power of pulse pair are.
     同时我们还发现 ,泵浦脉冲的相对于信号脉冲初始峰值功率愈高 ,初始相对宽度越小 ,所得弱脉冲的压缩比和压缩后脉冲峰值功率愈高 ,压缩到最窄时所需光纤长度越短 .
短句来源
     According to the results of stress analysis and Griffith抯 strength criteria,in order to guarantee crack initiation at the center of the specimen,the loading angle must be greater than a critical value (a2≥20°),and hence the minimum relative value of flatten width should be decided accordingly.
     根据应力分析的结果和Griffith 强度准则,为了保证试样在加载过程中由中心部位起裂,平台对应的加载角必须大于一个临界值(a2≥20°),并以此条件确定平台的最小相对宽度
短句来源
     At 35GHz, the S11 of antenna is -48dB,and the bandwith (S111<-10dB) is 2GHz, the gain is about 4dB. A novel broad band PBG structure for microstrip line has been proposed in chapter 3. The bandwidth of the stop band is about 6GHz.
     在对微波X频段光子晶体微带缝隙天线研究过程当中,研制了一种新颖的微波X频段光子晶体结构,带隙内衰减可以达到-47dB,带隙外损耗小于等于2dB,带隙宽度可以达到6GHz,相对宽度可达55%,具有超宽带的特性。
短句来源
     The analysis of variance shows that, although there arc variations within species, the fruit shape, such as the relative thickness of carpels and the width of ribs, is valuable in the classification of these genera.
     方差分析表明,果实的形状,如果的相对厚度和果棱的相对宽度,尽管存在着种内差异,在属和一些种的分类中很有价值.
短句来源
更多       
查询“相对宽度”译词为用户自定义的双语例句

    我想查看译文中含有:的双语例句
例句
为了更好的帮助您理解掌握查询词或其译词在地道英语中的实际用法,我们为您准备了出自英文原文的大量英语例句,供您参考。
  relative width
It was proposed to characterize the quality of test systems by relative width of the region of an unreliable response.
      
Solutions to these equations are obtained by numerical methods for various values of parameter d, which represents the relative width of the ring.
      
The relative width of the zebra structures varies only slightly with frequency (≈0.003-0.005); the radio emission is radiated in the ordinary mode.
      
The relative width of the emission spectrum is within 50-80% for low plasma densities and 15-30% for high densities.
      
It has been shown that the relative width of the pore-size distribution is virtually independent of powder particle sizes.
      
更多          
  relative widths
Exact values of relative widths of classes of differentialbe functions
      
It is proved that ifM satisfies the estimate which is uniform inn andr, then the above-mentionedn-dimensional relative widths of classesWr coincide with the corresponding Kolmogorov widths.
      
We consider relative widths characterizing the best approximation of a fixed set by its sections of given dimension.
      
Specific numerical examples of calculations for watercourses with different relative widths are given.
      
The average of the RSP for special constant relative widths of the tape, therefore, can be given.
      
更多          


(?) (?)

本文选取了型式相同、相对宽度b_2/D_2不同的七种工作轮,对它们的摩擦损失、轮阻损失和内(氵曳)漏损失作了似近的理论计算,并与已有的损失试验数据进行比较。按所得结果分析了b_2/D_2对效率的影响。同时,在流量、能量头和转数相同的条件下,分析和比较了三种典型工作轮(压缩机型、水泵型和闭式径向型)的主要参数和损失大小,得出这样一种看法,即在小流量情况下,压缩机型改为水原型并不一定有利。在上述基础上,提出了提高小流量机器效率的某些途径,并对四种方案作了具体计算,得出一些初步结论。

The menisci of 180 knee joints of children below eight years of age were studied and compared with those of the adults reported by the same author in a separate study. As the child growing, the morphological changes of the medial meniscus in this series of specimens are: increasing of the relative width of its posterior part, decreasing of the ratio of the width of the intermediate part to its posterior part; increasing of the angle between its intermediate part and posterior part up to right angle; changing...

The menisci of 180 knee joints of children below eight years of age were studied and compared with those of the adults reported by the same author in a separate study. As the child growing, the morphological changes of the medial meniscus in this series of specimens are: increasing of the relative width of its posterior part, decreasing of the ratio of the width of the intermediate part to its posterior part; increasing of the angle between its intermediate part and posterior part up to right angle; changing of its shape from C shape to G shape; and widening of its opening. All of these changes appear more rapidly around the age of one year. The morphological changes of the lateral meniscus accompanying the increase of age are: increasing of the relative width of its lateral part first and decreasing afterwards; decreasing of the ratio of the width of its opening to the length of its peripheral margin first and increasing afterwards; decreasing of the relative width of the popliteal sulcus and shifting of the position of this sulcus posteriorly. All of these changes appear also more rapidly around the age of one year and beyond eight years old. More rapid change of the menisci around one year of age may be correlated with the beginning of standing and walking. The formation of the disc-like meniscus was also discussed.

对四组八岁以下儿量(iso侧)的膝关节半月板进行了观察,同时与作者前所观察的成人半月板进行了比较。内侧半月板在这几组材料中所显示的形态变化是:随着年龄增长,内侧半月板后份的相对宽度逐渐增大,中间份与后份宽度的比值逐渐降低;中间份与后份间的夹角日益显著,逐渐增大到900-内侧半月板的形状由C形逐渐变成G形;半月板的开口也逐渐扩大。这些变化主要都显示在一岁前后。外侧半月板在这几组材料中所显示的形态变化是:随着年龄增长,中间份的相对宽度先增后减;开口与外周绿的比值先减后增;胭肌沟的相对宽度逐渐减小,沟的位置亦略向后移。此外半月板股骨韧带有随年龄增长而增强的趋势。这些变化主要显示在一岁之前和八岁之后。一岁前后正是儿量站立、行走的时候,半月板的形态变化可能与此有关。此外,根据所见的材料对临床盘状半月板的形成进行了讨论。

A fossil human mandible was discovered at Chenchiawo village in Lantian county, Shensi Province in 1963 and it was named provisionally Sinanthropus lantianensis(Woo, 1964). Further excavations were made in 1964.A fossil hominid skull was found at another site near Gongwangling village,east of the Lantian county seat.The fossil material con- sists of the frontal bone,large parts of the parietal bones,the right temporal bone,the basal parts of the nasal bones,large parts of the right and left maxillae with the...

A fossil human mandible was discovered at Chenchiawo village in Lantian county, Shensi Province in 1963 and it was named provisionally Sinanthropus lantianensis(Woo, 1964). Further excavations were made in 1964.A fossil hominid skull was found at another site near Gongwangling village,east of the Lantian county seat.The fossil material con- sists of the frontal bone,large parts of the parietal bones,the right temporal bone,the basal parts of the nasal bones,large parts of the right and left maxillae with the right second molar in situ,and the right third molar in distorted position.A fossil left up- per hominid molar found in the field at the Gongwangling site in May,1964 was iden- tical in morphology,size,colour,degree of wear with the right second molar in situ,and thus can be ascertained to belong to the left maxilla. A large amount of mammalian fossils was found with the hominid skull.According to Chow et al.(1965),a total of 25 mammalian species were recognized in the fauna which was considered to be of Early Middle Pleistocene age. The hominid skull is of light earthy red colour mixed with light grayish white colour. The posterior part of the parietal bones is dotted with small black spots.The material is highly fossilized. The skull cap is slightly distorted by compression.The central part of the outer sur- face of the frontal bone is markedly rugged in appearance.All the depressions have rather sharp edges,which probably indicate the corrosion process during fossilization.Ow- ing to pressure,the right orbit extends more forward than the left one and the lower margin of the left parietal bone is slightly more expanded outward than normal.But as a whole,the general morphology of the skull-cap is only slightly affected. The petrosal portion of the right temporal bone is fairly well preserved.It seems more closer to the temporal squama than normal,probably also due to pressure.The cochlea and the semi-circular canals within the pyramid can be clearly identified in the X-ray films. The anterior surfaces of the maxillae are also flattened by pressure.The right third molar is distorted in position though still connected to the alveolar process.The broken crowns and their roots of the right first premolar and the right first molar are still kept in their sockets. The coronal suture of the Lantian skull cap was already fused though it still can be clearly seen.The right second molar is worn to the second grade according to the stan- dard for modern Northern Chinese.According to both standards of modern man,it is about forty years of age.Since the suture closure and the wearing of the teeth of the fossil hominid is earlier and quicker than that of modern man,it is estimated that the Lantian hominid is over thirty years of age. The sex is difficult to identify.It seems to be a female individual judging from the smaller size of teeth(see Table 1 for measurements of the upper second and third molars),of the maxillae,the pyramid of the temporal bone and also the middle cranial fossa. The morphological features of the bones of the skull were described.The supraor- bital tori are very large and heavy,and form a continuous bar throughout the glabellar region.They have the same general character as in Sinanthropus of Choukoutien and Pithecanthropus of Java.However,contrary to the conditions in Sinanthropus,the tori are not separated from the squama by a distinct sulcus.The torus glabellaris projects somewhat more forward.The lateral parts of the tori extend even more sidewards than those in Sinanthropus and Pithecanthropus.The postorbital constriction is also more pro- nounced. The orbits are rectangular in form.The roof of the orbit is very flat.There is no supraorbital foramen.The lacrimal fossa is absent. The forehead is very low and distinctly receding.There is indication of the presence of a sagittal crest though it cannot be clearly distinguished owing to corrosion of the external surface of the frontal bone.As in all of the skulls of Sinanthropus,there is a cross-like elevation where the coronal suture meets the sagittal suture. In accordance with the sharply receding forehead the bregma is situated almost ver- tically above the porion.The temporal lines rise to real ridges. The measurements of the sagittal arcs and chords of pars glabellaris and pars cere- bralis of the frontal bone were taken and their indices were computed.It is seen from Table 2 that the linear measurements of the glabellar region of the Lantian specimen are much larger than those in Sinanthropus and Pithecanthropus,which indicate the massi- veness of this region.The chord-arc index of the cerebral region of the frontal of the Lantian skull approaches the upper limit of both Sinanthropus and Pithecanthropus.It shows the lowness of the forehead of the Lantian skull. The frontal sinus is missing.The supraorbitals are solid as illustrated in the skiagram on Plate Ⅳ. On the interior surface of the frontal bone,the crista frontalis is preserved in the form of a wide and fairly high elevation.This is a distinct human characteristic,for it is missing in anthropoids. The parietal bone is almost rectangular.The frontal angle or angle at the bregma is almost a right angle.The mid-sagittal arc is shorter than that of the frontal bone. The long axis of the pyramid of the temporal bone has an intermediate direction bet- ween that of modern ape and modern man.The pyramid itself is slender as that of modern female.The anterior and posterior surfaces slope more abruptly than those of modern man. One distinct peculiarity of the Lantian skull is the extraordinary thickness of the cranial wall.Measurements of the thickness at different locations are given in Table 4. It is seen that it has the greatest thickness among the pithecanthropines.The thickness is chiefly due to the enlargement of the external and internal tables and not to the di- plo■ of the cranial bones. The two nasal bones form an angle of about 130°.The nasofrontal suture is com- pletely preserved.This suture,together with the frontomaxillar suture,takes an almost horizontal course.The nasal bones are distinctly wider and shorter than those of mo- dern man. The maxilla is small in size.Its remarkable feature is the marked alveolar progna- thism.The anterior surface of the maxilla forms almost a right angle with the floor of the nasal cavity.A small but distinct spina nasalis anterior is present.This is also a distinct human character.The lateral region of the right maxilla shows the fairly marked jugum alveolare of the canine.Lateral to the jugum is a sulcus-like depression. The crown of the upper second molar is rectangular in shape.The paracone extends more antero-buccally and thus forms a fairly marked proximal buccal angle.The upper third molar has similar features as the second,but has more smaller crown length and relatively greater width.The occlusal surface of the crown of the third molar is nearly triangular in shape. As not only the skull cap and the right temporal but also parts of the facial skele- ton were preserved,a reconstruction of the skull was possible.The reconstructed skull has a length of 189 mm,breadth,149 mm and auricular height,87 mm.Its height is not only smaller than that of the Sinanthropus skull but also than those of Pithecanthropus from both Trinil and Djetis beds. The cranial capacity of the reconstructed skull is computed according to Pearson's for- mula.It is 778 cc.As the two parietals are largely preserved,the biparietal vaults were reconstructed and measured to be 417.6 cc.According to the proportion of the total endocast volume to the biparietal endocast volume in early hominids(Tobias,1964),we get the total endocast volume of 775—783 cc for the Lantian skull.The values obtained from both methods are remarkably close.Thus the cranial capacity of the Lantian speci- men is estimated to be 780 cc. From the main features shown by the specimen described above,such as the massive supraorbital ridges and the pronounced postorbital constriction,the very lowness of the frontal squama and the cranial height,the extraordinary thickness of the cranial wall,and the rather small cranial capacity,we can ascertain that the Lantian skull is more primitive than the Sinanthropus of Choukoutien and the Pithecanthropus from the Trinil beds of Java.It seems morphologically to be more closer to the Pithecanthropus robustus from the Djetis beds of Java.Thus the Lantian specimen represents one of the earliest forms of the pithecanthropines. It has been considered by many anthropologists and taxonomists that all the pithe- canthropine forms are of the same species,Homo erectus.This concept is obviously more logical and is gaining ground.Accordingly,the name Sinanthropus lantianensis represent- ed by the Lantian mandible found in 1963 should be changed to Homo erectus lantian- ensis.As the Lantian skull and mandible are of similar pattern and of the same geolo- gical age of Middle Pleistocene,it is suggested that they should belong to the same sub- species.However,for the expedience of reference to the older literatures,it is suggested to retain the old nomenclature in square brackets after the generic name.Thus,the Lantian specimen has the nomenclature as Homo[Sinanthropus]erectus lantianensis.Like- wise,Sinanthropus pekinensis should be changed to Homo[Sinanthropus]erectus pekinensis; Pithecanthropus erectus,to Homo[Pithecanthropus]erectus erectus;and Atlanthropus mau- ritanicus,to Homo[Atlanthropus]erectus mauritanicus.

1.蓝田公王岭发现的猿人头骨化石材料,计有完整的额骨,顶骨的大部分,右侧颞骨的大部分,左鼻骨的大部分和右鼻骨的鼻根部,右上颌骨的体部和额突部,以及右上第二、三臼齿和左上第二臼齿。2.头盖骨的骨缝已经愈合,上第二臼齿的磨耗已达二度,估计蓝田猿人的年龄大约是三十多岁。3.由牙齿、上颌骨、颞骨锥体和颅中窝等较为细小来判断,蓝田猿人可能是女性。4.额骨前部的眶上圆枕硕大粗壮,在眼眶上方几形成一直条横行的骨嵴。圆枕的两侧端明显向外侧延展,圆枕之后明显缩窄。眼眶约呈方形,眶顶很平,没有眶上孔和泪腺窝。额骨的鳞部明显后斜,颞线隆起成为明显的骨嵴。眶上圆枕与额鳞之间没有明显的宽沟相隔。没有额窦。额骨内面的正中有宽阔而较高的额嵴。测量数值表明眉间部粗壮,额骨脑部的弧度极小,额骨极为宽阔。5.顶骨约成长方形,在正中矢状面上,顶骨短于额骨。6.颞骨锥体长轴的方向大约介于现代猿与现代人之间,与北京猿人相似。锥体较为细致,其形状和大小与现代人的女性较为接近。锥体的前后面倾斜度较大,上绿较锐,与现代人相近。7.蓝田猿人头骨的明显特点之一是其骨壁极厚,接近甚至超过北京猿人和爪哇猿人头骨相当部分厚度的上限。8.两鼻骨在根部相交约成130°角...

1.蓝田公王岭发现的猿人头骨化石材料,计有完整的额骨,顶骨的大部分,右侧颞骨的大部分,左鼻骨的大部分和右鼻骨的鼻根部,右上颌骨的体部和额突部,以及右上第二、三臼齿和左上第二臼齿。2.头盖骨的骨缝已经愈合,上第二臼齿的磨耗已达二度,估计蓝田猿人的年龄大约是三十多岁。3.由牙齿、上颌骨、颞骨锥体和颅中窝等较为细小来判断,蓝田猿人可能是女性。4.额骨前部的眶上圆枕硕大粗壮,在眼眶上方几形成一直条横行的骨嵴。圆枕的两侧端明显向外侧延展,圆枕之后明显缩窄。眼眶约呈方形,眶顶很平,没有眶上孔和泪腺窝。额骨的鳞部明显后斜,颞线隆起成为明显的骨嵴。眶上圆枕与额鳞之间没有明显的宽沟相隔。没有额窦。额骨内面的正中有宽阔而较高的额嵴。测量数值表明眉间部粗壮,额骨脑部的弧度极小,额骨极为宽阔。5.顶骨约成长方形,在正中矢状面上,顶骨短于额骨。6.颞骨锥体长轴的方向大约介于现代猿与现代人之间,与北京猿人相似。锥体较为细致,其形状和大小与现代人的女性较为接近。锥体的前后面倾斜度较大,上绿较锐,与现代人相近。7.蓝田猿人头骨的明显特点之一是其骨壁极厚,接近甚至超过北京猿人和爪哇猿人头骨相当部分厚度的上限。8.两鼻骨在根部相交约成130°角。鼻额缝与额上颌缝互相连续,约在水平位。鼻骨宽度远大于现代人,鼻骨长度明显比现代人为短。9.上颌骨及其附连的臼齿较为细致。上颌骨呈明显的齿槽凸颌。上颌骨前面与鼻腔底约成直角,两者之间有明确的分界。有小而明显的鼻前棘。右上颌骨外侧面的内侧缘有相当明显隆起的犬齿齿槽轭,在该轭与上颌骨颧突之间有从上向下延伸的沟状低凹。上第二臼齿齿冠呈长方形,前尖较为向前外方突出,有较明显的近侧颊角。上第三臼齿的形态大体与第二臼齿相似,但其齿冠长度较小,其相对宽度更大,齿冠咬合面近乎三角形。10.参考北京猿人和爪哇粗健猿人的复原头骨,进行了蓝田猿人头骨的复原。11.根据复原头骨颅内的长、宽和高计算了蓝田猿人的脑量。又根据复原的顶骨,依照比例,计算了脑量。两种方法所得的结果极为接近,估计其脑量大约为780c.c.。12.从眶上圆枕的形态和圆枕后的明显缩窄,额鳞的非常低平,头骨壁极厚,头骨高度很小,脑量很小等一系列特征,明显表示蓝田猿人的形态比北京猿人和爪哇猿人为原始,而大致与最早的爪哇粗健猿人相近,两者的地层层位也大致相当。13.为了符合人类学上的新的分类系统,建议蓝田猿人的学名为 Homo[Sinanthropus]erectus lantianensis,即把蓝田猿人和所有其他的猿人都归入直立人种;又为了便于与过去的文献资料相对照,建议把原先的属名放在新的属名之后的方括弧内,在过一定时期之后,再取消方括弧内的旧属名。

 
<< 更多相关文摘    
图标索引 相关查询

 


 
CNKI小工具
在英文学术搜索中查有关相对宽度的内容
在知识搜索中查有关相对宽度的内容
在数字搜索中查有关相对宽度的内容
在概念知识元中查有关相对宽度的内容
在学术趋势中查有关相对宽度的内容
 
 

CNKI主页设CNKI翻译助手为主页 | 收藏CNKI翻译助手 | 广告服务 | 英文学术搜索
版权图标  2008 CNKI-中国知网
京ICP证040431号 互联网出版许可证 新出网证(京)字008号
北京市公安局海淀分局 备案号:110 1081725
版权图标 2008中国知网(cnki) 中国学术期刊(光盘版)电子杂志社