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长度变化     
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  length change
     The influence of time length change on AchE according with the equation y = -0. 001 lx2 + 0.0809x + 0.1462(r = 0.9797).
     时间长度变化对乙酞胆碱酣酶比活力的影响符合方程式:y=一0.001 lx2一卜 0.0809x+0.1462(r=0.9797)。
短句来源
     The resolution ratio for the sample length change is 0.5 μm.
     对试样长度变化的分辨率为0.5μm。
短句来源
     Fractal Behavior of Length Change in Human Mitotic Chromosome
     人外周血淋巴细胞染色体有丝分裂时长度变化的分形特性初探
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     Studies were made on the length change and structures of filaments of cleistogamous rice CL01 and anthesis rice T168. The results show that the filament length of CL01 increases very little, only from 0.2 mm to 1.8 mm;
     对开花前后正常开颖授粉水稻材料T16 8和闭颖授粉水稻材料CL0 1的花丝长度变化和超微结构变化进行了研究。
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     Objective To study the change in the length of patellar tendon after total knee arthroplasty, compare the effect of patella resurfacing on the tendon length and the correlation between the length change and the range of motion.
     目的 研究全膝置换术后的髌腱长度变化,置换髌骨对髌腱长度的影响,髌腱长度变化与术后膝关节活动度的关系。
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  length variation
     When the concentration of acetone and HCl are 20% and 2% respectively,the concentration of catalyzer is 30g/L,the length variation of the separated fiber is at the minimum and the yield of lignin is higher with a preferable separating effect.
     在丙酮20%,盐酸浓度2%及催化剂浓度30g/L条件下,分离纤维的长度变化较小,且木素得率较高,分离效果较好。
短句来源
     Method to Control the Length Variation in Fabrica tion and Installation of Steel Pipe Arch Rib
     控制钢管拱肋制作与安装中长度变化的方法
短句来源
     Technology at Measure Minimum Length Variation and its Application in Physical Experimentation
     微小长度变化的测量技术在物理实验中的应用
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     Traditional knowledge about the rule of backwater length variation is reasonable,which is a special case of analytic solution to backwater length.
     有关回水长度变化规律的传统认识有其合理性,它是回水长度解析理论的一种特殊情况。
短句来源
     The results indicate that in general there is an extreme value in the range of backwater length variation.
     研究结果表明,在一定条件下,水库回水长度变化存在极值现象;
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  change of length
     · CONCLUSION: The change of length of eye axis was approximiate 9.61±0.16mm by the A-ultrasonic examination. It can directively help in measuring the intraocular lens of silicon oil eye with cataract. ·
     结论:硅油充填前后A超眼轴长度变化约9.61±0.16mm,对硅油眼并发性白内障的人工晶状体测量有一定指导意义。
短句来源
  length changes
     With southern blot the mean telomere length changes of apoptotic or normal HUVEC or RGC were measured .
     以Southern杂交法测量凋亡组与正常组HUVEC或RGC的端粒长度变化
短句来源
     ②Length changes of chorda tendineaes:The length was increased with time(experimental times),but the increase rate gradually slowed down. At 50 million times the mean length increase was(0.795±0.037) mm and at 100 million times it was(0.587±0.044) mm,then it gradually slowed down,and did not excess(0.168±0.021) mm.
     ②腱索长度变化:腱索长度随时间(实验次数)的增加而增加,但增加速度逐渐减慢,0.5亿次时平均增加(0.795±0.037)mm,1亿次时增加(0.587±0.044)mm,以后增加缓慢,不超过(0.168±0.021)mm。
短句来源
     By culturing HUVEC to simulate cell duplicating senescence , the status of duplicatedcell senescence were reflected by various mean population doubling time such as 1 and 20 , and the mean telomere length changes in HUVEC with various population doubling times also measured.
     以HUVEC细胞传代培养复制细胞衰老模型,用1代,20代表示细胞的倍增次数,反映细胞的复制衰老状态,观察不同倍增时间(1代,20代)的HUVEC的端粒长度变化状况。
短句来源
     And to explore the possible existed relation between their telomere length changes and apoptosis , the mean telomere length changes in normal and apoptotic retinal ganglion cells (RGC) were also measured.
     进而研究RGC端粒长度变化与RGC凋亡的关系,探讨端粒长度变化与青光眼发病之间的可能联系。
短句来源
     The cytosolic calcium comcentration and length changes of airway smooth muscle cells induced by histamine and its mechanism
     组胺刺激的气道平滑肌细胞钙离子浓度和长度变化及机制
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  length change
Changes in MS DNA sequence length per one repeated element, i.e., single-step mutations (93% of cases) exceeded all other events of allele length change.
      
With the model, the temperature distribution and the length change in the vessel walls and flat steel ribbons in low temperature are calculated and analyzed.
      
Active elastic stiffness was estimated from the linear relationship of minimum (for releases) or maximum (for stretches) tension reached during a length change with muscle length change (strain).
      
The sensitivity of relaxation to changes in length or load was evaluted by measuring how much earlier tension declined in the presence of a given length change.
      
Therefore, the ratio >amp;gt;1 was neither a function of activation nor heterogeneous sarcomere length change.
      
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  length variation
The mitochondrial genomes of eukaryotes differ considerably in size and structural organization mainly due to the length variation in noncoding regions and the presence of introns.
      
At low pressures P≤5×10-5 torr over the entire range of anode length variation la=0.5-11 cm, the ion current distribution over the cathode radius Ji(r) features a single maximum in the center and drops steeply with distance from the axis.
      
Spacer length variation in rice 5S rRNA genes revealed by polymerase chain reaction
      
There was considerable length variation among the β-fibint 7 sequences examined, ranging from 1123 bp in S.
      
The repeat region, responsible for the length variation and heteroplasmy is located near the 5' end of the control region and consists of slightly imperfect palindromic sequences.
      
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  change of length
A single-layer perceptron was trained to associate the sensory feedback from the limb (coding force, length, and change of length for each muscle) with the two-dimensional activity profile of the traveling wave.
      
In her 46,XX,6(11;22)(q23;q11) caryotype, the rearranged elements exhibit no change of length.
      
The mean rate of change of length was -0.093 cm per year.
      
Both the angular deceleration and the rate of change of length are dependent on the nature of the material of the rod, and these rates are small, as expected.
      
The change of length during annealing was recorded and the compressive strain was found to recover obeying second-order kinetics at least during the later part of recovery.
      
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  length changes
For the same oxidation state of the Pr atom, the volume of its VD polyhedron remains virtually independent of the C.N., although the Pr-O bond length changes by 0.86 ? in Pr(III) complexes and by 0.77 ? in Pr(IV) complexes.
      
For the same oxidation state of the Pr atom, the volume of its VD polyhedron remains virtually independent of the C.N., although the Pr-O bond length changes by 0.86 ? in Pr(III) complexes and by 0.77 ? in Pr(IV) complexes.
      
or the shape of the coordination polyhedron, although the Ln(III)-O bond length changes by 0.6-0.7 ?.
      
The volume of the VDP of La atoms virtually does not depend on the C.N., although the La-O bond length changes by 0.77 ?.
      
A self-mixing interferometer is proposed to measure nanometre-scale optical path length changes in the interferometer's external cavity.
      
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  其他


The kinetics of decomposition of retained austenite in AISI 4325,AISI 4340and their silicon modified steels has been studied by precision length measurement.It is found that the internal stresses play a very important role in the first instantof transformation.In steels with normal silicon content(0.2—0.3%),the activation energy of thedecomposition of retained austenite is about 35,000 cal/mole,comparable to thatrequired for the diffusion of carbon in γ-Fe.In general,high silicon content(1.5% Si)retards the...

The kinetics of decomposition of retained austenite in AISI 4325,AISI 4340and their silicon modified steels has been studied by precision length measurement.It is found that the internal stresses play a very important role in the first instantof transformation.In steels with normal silicon content(0.2—0.3%),the activation energy of thedecomposition of retained austenite is about 35,000 cal/mole,comparable to thatrequired for the diffusion of carbon in γ-Fe.In general,high silicon content(1.5% Si)retards the transformation of retain-ed austenite in these steels.Based upon the isothermal transformation curvesand rate equation the activation energy for this transformation has been deter-mined to be about 44,000 cal/mole,and it is therefore suggested that the diffusionof silicon in γ-Fe surrounding the growing carbide particles is possibly the ratecontrolling factor.

用测量长度的变化,得出残留奥氏体在含硅量不同的Ni(2%)Cr(0.8%)Mo(0.25%)高强度低合金钢中在回火过程的分解曲线,在这些合金钢中,硅的含量为1.5%时,残留奥氏体的分解较慢。由其分解激活能的推论得到:在这个类型的合金钢中,含硅量较低时(0.2—0.3%),残留奥氏体的分解是由于碳在奥氏体中的扩散,而含硅量较高时(1.5%),硅的扩散可能成为残留奥氏体分解的控制因素。

Pseudosasa amabilis (McCl.) Keng f.,the Tonkin Cane,is a famous exported bamboo.The present paper deals with both variations in the mean fibre-lengths between the internodes and the distribution of fibre-lengths within the plant of three-year-old culm. All the macerated materials were selected from the outer part,i.e.,adjacent to the epidermis, the middle part and the inner part,respectively.These were taken from the middle of an inter- node along its diameter.Each part was consisted of two match-sized sticks,and...

Pseudosasa amabilis (McCl.) Keng f.,the Tonkin Cane,is a famous exported bamboo.The present paper deals with both variations in the mean fibre-lengths between the internodes and the distribution of fibre-lengths within the plant of three-year-old culm. All the macerated materials were selected from the outer part,i.e.,adjacent to the epidermis, the middle part and the inner part,respectively.These were taken from the middle of an inter- node along its diameter.Each part was consisted of two match-sized sticks,and was macerated and mounted on a slide.Total 615 slides were made.They were supplied from 205 internodes of 9 culms which had been collected from two slopes of the native place (Table 1).A report of the habitat of this Bamboo was quoted. The length of fibre was measured by projection with the aid of a graduated circular target (Fig.1;).All measurements and calculations were separated in regard to both different inter- nodes and parts. After studying the lengths of 24300 fibres which are distributed to the three parts from the Znd to the 19th internodes(Tables 2—5;Figs.2—3),some facts may be concluded as follows: 1)That the mean fibre-lengths between the internodes increase with the order of the internode upwards from the ground.When the fibre reaches its maximum length,it decreases its length with the internode order upwards further. According to the result of calculation,the increases of mean fibre-lengths of different parts from the 2nd to the 5th internodes generally are apparent.Before a given internode (i.e.,fibres of the outer part is at the 10th internode,those of the middle the 11th,and those of the inner the 13th),fibre-length tends to (or comparatively) increase wavely (or gradually).After this inter- node,the length tends to decrease,commonly wavely.However,fibre-length may slightly increase in the 17th internode.Beyond this internode,the length generally decreases apparendy.(Tables 2—3;Fig.2.) 2)That the increase or decrease of the length of an internode is similar to that of the fibre length,ie.,it varies with the order of the internode upwards.In other words,the increases of the internode lengths from the 2nd to the 5th internodes are correspondingly apparent.Next,the internode length gradually increases.After the 13th internode,the length decreases gradually. 3)That the variation in the fibre-length of the inner part comparatively is more similar to the variation in the length of the internode.This relation between fibre-length and internode-length seems not so closely as in the case of the fibre-length of the outer part,and,in terms,of the middle part.(Table 5.) 4)That the mean fibre-length of the outer part is longer than that of the middle and that of the inner.(i.e.,1995±25μ,1858±29μ,and 1687±27μ,respeetively.)Between the order of internodes,the increase or decrease of fibre-length of the outer part is more typical than the pheno- mena present in the middle and the inner parts (Fig.2). 5)That both variations in the diameter of an internode (here it is expressed as the diameter of the ring which taken from the lniddle of the internode) and in the thickness of the internode (here expressed as the wall thickness of the same ring) decrease with the order of the internode upwards.(Fig.2.) 6)That,therefore,the increase and decrease of the mean fibrelengths of different parts are affected by the factor of the internode length.And 7)That the distribution of fibre-lengths of three-year-old culm of Pseudosasa amabilis along the radii of the middle of the internodes examined,the fibres of the outer part are the longest,(1998± 445μ);those of the inner are the shortest,(1675±401μ);while those of the middle are the inter- mediate,(1851±409μ).(Table 4;Fig.3.)

青篱竹的三年生纤维长度的变化,从9条竹子(2个坡向,3个地形)的第2至第19节间的中央位置,分别以投影方法量度外部、中部和内部纤维,共计24300条,其结果概括如次:平均纤维长度系随节间顺序的上升而增加,当长度达相当程度时,则随节间顺序的上升而减少。节间长度的增加和下降,它和纤维长度一样,系随节间顺序的上升而变化。内部纤维长度的变化更类似于节间长度的变化。外部纤维的平均长度比中部的和内部的长些,至其中误差对中数的关系也较小。关于竹环直径和竹环壁厚的变化情形,是随节间顺序的上升而减少的。所以,不同部分的平均纤维长度的增加和减少,是受节间长度的影响的。最后,三年生青篱竹的纤维长度的分配,在节间中央的横切面上,外部纤维较长(1998±445微米),内部纤维较短(1675±401微米),而中部纤维则在二者之间(1851±409微米)。

A comparison of the internal structure of the culm and the morphological variations of the fibers in various parts of the culm between Phragmites communis Trin. and Miscanthus sinensis Anders. has been investigated. The short cells which consisted of the silica cells and suberized cells were found to be less in number and much fewer in the form of groups in the epidermis of the culm of Phragmites than in that of Miscanthus. However, the variation in distribution of all these short cells in different levels of...

A comparison of the internal structure of the culm and the morphological variations of the fibers in various parts of the culm between Phragmites communis Trin. and Miscanthus sinensis Anders. has been investigated. The short cells which consisted of the silica cells and suberized cells were found to be less in number and much fewer in the form of groups in the epidermis of the culm of Phragmites than in that of Miscanthus. However, the variation in distribution of all these short cells in different levels of a culm, i. e. more in the upper, and fewer in the lower, obtained in both genera. In the transverse section, only one layer of hypodermal fibers with markedly thickened walls was seen in Phragmites and interior to this, the bundle caps were coalesced into a band; whereas in Miscanthus there were two layers and the bundle caps were more or less discrete. Furthermore, the fundamental parenchyma of the culm occupied a smaller portion in Phragmites than in Miscanthus. The morphological characteristics of fibers in different parts of the culm were similar in both genera, being the longest in the middle portion of the culm and the shorter its base and shortest at the top. The average length, width, and length-width ratio were usually greater in Miscanthus than in Phragmites.

四、摘要本文比較观察了芦葦和芒茎稈的內部結构,及其纤維在上、中、下各部位上的形态变异。由茎稈的結构方面。在芦葦的茎稈表皮上,短細胞較少,并且只有极少数組成为短細胞羣。但是在芒的表皮上,短細胞分布較密,并多連成短細胞羣。其分布密度均以上部最大,中部次之,下部最小。在横切面上,表皮下面的纤維层,在芦葦中只有一层,其細胞壁有显著的加厚;其內的維管束帽連成带状。芒的表皮下則有二层纤維;維管束帽不成带状。另外,芦葦茎稈中的基本薄壁組織所占的比例比芒的小。至于纤維形态方面,芦葦和芒基本相似,并且在长度变化上,都以中部最长,下部次之和上部最短。但是在长度,寬度以及长寬比值上,一般芒比芦葦的大。

 
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