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dental     
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     The Effects of Excessive Fluoride on Type Ⅰ Collagen, MMP-8 in Dentin and Calcium Transport in Dental Pulp Cells
     过量氟对本质Ⅰ型胶原、基质金属蛋白酶-8和髓细胞钙离子转运的影响
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     A Pilot Study on the Gene Colning of Bovine Cementum Attachment Protein and Its Biological Effects on the Human Dental Follicle Cells in Vitro
     牛骨质附着蛋白基因克隆的初步研究及其对体外培养人囊细胞的生物学作用
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     A Preliminary Clinical Research of Dental Trauma
     创伤的临床研究
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     Cultivation and Differentiation of Human Dental Papilla Mesenchyme Cells
     人乳头间充质细胞的分离培养及生长分化的实验研究
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     The Expressions of OPG and RANKL in Human Dental Follicle Cells in Vitro and Their Effects on Tooth Eruption
     体外培养人囊细胞中OPG和RANKL的表达及其对齿萌出的作用
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  牙科
     Study on K_2O-Al_2O_3-SiO_2 System Dental Glass Ceramics and Clinical Application
     K_2O-Al_2O_3-SiO_2系统牙科玻璃陶瓷的研制及其临床应用
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     Studies on the Preparation of ZrO_2/Al_2O_3 Composite Ceramic for Dental Application
     牙科ZrO_2/Al_2O_3复合陶瓷材料制备的研究
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     Conclusion Certain content of K2O can improve the crystallization property of dental glass-ceramics in the Li2O-SiO2-Al2O3-P2O5-ZnO system.
     结论添加一定量的K2O有助于提高牙科Li2O-SiO2-Al2O3-P2O5-ZnO体系微晶玻璃的析晶性能。
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     Research on Low-temperature Sintering of Dental Al_2O_3/ ZrO_2 Composite Ceramics
     牙科Al_2O_3/ZrO_2复合陶瓷的低温烧结研究
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     Research and preparation of ZrO_2(3Y)/Al_2O_3 nano-ceramic composite and its mechanical properties for dental application
     牙科ZrO_2(3Y)/Al_2O_3纳米复合陶瓷材料的研制及其力学性能
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  口腔
     the detective rates of Hp in dental plaque by four methods were 88.7%,25.8%,69.4%,and 90.3%,respectively.
     口腔牙菌斑中Hp检出率分别为88.7%、25.8%、69.4%、90.3%。
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     The self-testing of VILLA STRATO 2000 dental panoramic X-ray machine
     VILLA STRATO 2000口腔全景X光机自检故障
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     Oral parasitic protozoa infection rate in patients with gingival bleeding and dental caries (80.62%) was greater than in common healthy population(39.46%, P< 0.005).
     牙龈出血和龋齿的口腔疾患者的口腔原虫感染率(80.62%)较口腔健康者(39.41%)高(P<0.005)。
短句来源
     Method Total protozoa were recorded from direct smears and locke cultures with information on gingival bleeding and dental caries.
     方法采用locke液培养法与直接涂片法检测口腔原虫并进行比较,记录学生的牙龈出血与龋齿情况。
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     The effect of Ce on the corrosion of new Ti-Fe-Mo-Mn-Nb-Zr-type dental alloys in artificial humor and varying pH lactic acid were invertigated by electrochemical technical and immersion tests, respectively.
     采用电化学测试技术研究了Ce对新研制的口腔用Ti-Fe-Mo-Mn-Nb-Zr合金在人工体液中耐腐蚀性能影响,采用浸泡试验探讨了Ce对Ti-Fe-Mo-Mn-Nb-Zr合金在不同pH值乳酸中耐腐蚀性能的影响。
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  牙齿的
     The corrective results of 11 to 13 years old group were the worst among the three groups with a longer corrective time(9±0.5 months), less skeletal changes(59.5%) and more dental changes(41.0%) than the other two groups(P<0.05).
     11~13岁组相对前两组治疗时间较长(9±0.5)个月、骨骼改变较少(59.5%)牙齿的代偿性改变较多(41.0%,P<0.05)。
短句来源
     METHODS:Immunohistochemical staining technique was used to observe the expression and localization of CSF-1 in cultured human dental follicle cells.
     方法 :取 12岁患者因正畸需要拔除的埋藏阻生牙齿的牙囊进行人牙囊细胞培养 ,用免疫组织化学染色技术 ,观察CSF - 1在细胞中的表达及定位。
短句来源
     Method The (X, Y) digital coordinates were established based up on materials concerning shape and arrangement of the teeth by analyzing samples of 400 models of teeth. The position of every tooth's key point corresponding to the origin was obtained, thus, the characters of tooth and dental arch could be calculated rapidly according to Borland C ++ 5.0 computer language under DOS system.
     方法 经过对400例牙模进行分析、计算,将牙齿的形状、排列转换成数字型(X,Y)坐标,通过计算出每颗牙关键点与坐标原点的相对位置,在DOS系统下运用Borland C++5.0语言编写程序,快速地计算出牙齿和牙弓的特征。
短句来源
     AIM:To measure the baseline of pH,buffer effect,the contents of calcium,phosphate and fluoride of five class market beverages,predict their capability to erode dental enamel.
     目的:通过对碳酸类、果汁类、普通牛奶类、高钙奶类和瓶装矿泉水类等五类市售饮料的pH值、缓冲能力、钙、磷、氟离子等相关因素的测定,预测它们对牙齿的酸蚀能力。
短句来源
     Conclusion:The rebuilding of dental cast will greatly advance the quality and efficiency of teeth designs.
     结论:得到牙颌的三维重建数字模型,牙颌模型的建立将极大地提高后期医生设计牙齿的质量与效率。
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      dental
    A collection composed of 170 kidney stones, 89 dental deposits, and 120 gallstones of patients from the Omsk region is examined using X-ray fluorescence spectroscopy.
          
    The analysis of the experimental data demonstrates that kidney stones contain 36 elements, dental deposits involve 14 elements, and gallstones include 13 elements.
          
    A Safe Physiological Challenge Test for Specification of Intolerance to Dental Materials
          
    Dental formulas have been determined in 598 out of 911 animals united into a single large, extended pedigree.
          
    Polymorphism of dental formula and segregation of its variants in a pedigree of Kerry Blue Terrier dogs
          
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    Six known species, two new species and one new subspecies are described, which arecollected in China, and all belonging to the genus Dendrolimus Germar. The charactersused for the identification of species are: the patterns of the forewing, the structure of thescales and genital organs; the size and structures surrounding the micropyle of the eggs;tufts of the subdorsalis anterior of the mature larvae and the shapes of the pupal cre- masters. Besides, keys to adults, eggs and larvae are prepared separately,...

    Six known species, two new species and one new subspecies are described, which arecollected in China, and all belonging to the genus Dendrolimus Germar. The charactersused for the identification of species are: the patterns of the forewing, the structure of thescales and genital organs; the size and structures surrounding the micropyle of the eggs;tufts of the subdorsalis anterior of the mature larvae and the shapes of the pupal cre- masters. Besides, keys to adults, eggs and larvae are prepared separately, each basedupon the more common and conspicuous characteristics. Types are preserved in theMuseum of the Institute of Zoology, Academia Sinica, Peking. Dendrolimus tabulaeformis Tsai et Liu, n. sp. Colour variable, being pale greyish brown to deep brown. closely allied to D.punctatus Wk., but with distinguished transverse stripes and not strongly curved costalmargin on the primaries. Submarginal line broken into black spot-series, to line through2 spots in the 1st and 2nd interspaces crossed with the termen. white discocellularspot on primaries much clear than ; transverse stripes distinct; submarginal black spot-series is defined internally by reddish brown colour which is quite different from thatof D. punctatus. Minor harpe. of male genitalia approached to 1/2 the length of the major;mid-antevaginalis of female genitalia large, latero-antevaginalis nearly round. Micropyleend of the eggs without distinct protuberance; surrounding micropyle with 2--3 layers ofinner-layer cells; outer-layer cells with irregular stripe like central invaginations. Abovethe mid- and metathoracic segment of larvae with black belt-like hairy scales; tufts ofsubdorsalis anterior strongly developed; the base of tufts not covered with spindle-shapedscales, only with black hairs; spatulate hairs small, scarcely with dental ends.: length,20—28 mm.; exp., 45—61 mm. : length, 23—30 mm.; exp., 57—75 mm. Holotype: , Hopeh: Lanping (1961, Ⅷ, 2), allotype: , Peking (1955, Ⅶ,21), paratype: 15 specimens (,) from various localities of Hopeh and Liao-ning provinces. Dendrolimus xichangensis Tsai et Liu, n. sp. Primaries light brown; median and postmedian lines deep brown, the interspacebrown; costal margin 1/3 near the apex strongly curved; outer margin wavy. Submarginalline broken into black spot-series, to line through 2 spots in the 1st and 2nd interspacescrossed with the apex. Minor harpe of male genitalia strongly chitinized, with a 90°turning, closely connected with major, mid-antevaginalis and latero-antevaginalis of fe-male genitalia fused together. Micropyle end of the eggs without distinct protuberane;surrounding micropyle without middle layer cells; outer layer cells without central in-vaginations; corner-setae sometimes not distinct, but with distinct basal papilla. Abovethe mid- and metathoracic segment of larvae without black belt-like hairy scales; lateralside of each abdominal segment with black tufts. : length, 37 mm.; exp., 60 mm.: length, 37 mm.; exp., 78 mm. Holotype: , allotype: , Szechuan: Xichang (1959). Dendrolimus kikuchii ochraceus Tsai et Liu, n. ssp. The characters used for the identification of this subspecies are closely allied to D.kikuchii Mats., but with distinguish dark brown color in , distributed in Hunan andKiangsi provinces, with Pinus massoniana Lambert as its hostplant. : length, 38 mm.;exp., 62 mm. : length, 38 mm.; exp., 83 mm. Holotype: , allotype: , Kiangsi: Yifeng (1959, Ⅶ, 3).

    松毛虫属变异较复杂,过去文献上的记载比较紊乱,本篇着重以各虫期的形态特征为主,修订记载了我国严重为害松柏科的6种松毛虫,计:西伯利亚松毛虫(Dendrolimus sibiricus Tschetv.),赤松毛虫(D.spectabilis Butler),马尾松毛虫(D.punctatus Walker),铁杉毛虫(D.superansButler),云南松毛虫(D.latipennis Walker),和思茅松毛虫(D.kikuchii Mats.),同时记述了2个新种,计:油松毛虫 (D.tabulaeformis Tsai et Liu)和西昌松毛虫(D. xichangensis Tsai et Liu)及1个新亚种:赭色松毛虫(D.kikuchii ochraceus Tsai et Liu)。模式标本保存在中国科学院动物研究所。 新种油松毛虫和赤松毛虫、马尾松毛虫很近似,但其成虫前翅较狭长,中横线与外横线为白色,亚外缘斑列内侧有白色斑;外生殖器小抱针长度约为大抱针的1/2;外生殖器侧前阴片接近圆形。卵壳上内层室和中层室壁很薄,外层室中央凹下部分呈不规则条状。幼虫毛片束发达,片状毛小,先端极少有齿...

    松毛虫属变异较复杂,过去文献上的记载比较紊乱,本篇着重以各虫期的形态特征为主,修订记载了我国严重为害松柏科的6种松毛虫,计:西伯利亚松毛虫(Dendrolimus sibiricus Tschetv.),赤松毛虫(D.spectabilis Butler),马尾松毛虫(D.punctatus Walker),铁杉毛虫(D.superansButler),云南松毛虫(D.latipennis Walker),和思茅松毛虫(D.kikuchii Mats.),同时记述了2个新种,计:油松毛虫 (D.tabulaeformis Tsai et Liu)和西昌松毛虫(D. xichangensis Tsai et Liu)及1个新亚种:赭色松毛虫(D.kikuchii ochraceus Tsai et Liu)。模式标本保存在中国科学院动物研究所。 新种油松毛虫和赤松毛虫、马尾松毛虫很近似,但其成虫前翅较狭长,中横线与外横线为白色,亚外缘斑列内侧有白色斑;外生殖器小抱针长度约为大抱针的1/2;外生殖器侧前阴片接近圆形。卵壳上内层室和中层室壁很薄,外层室中央凹下部分呈不规则条状。幼虫毛片束发达,片状毛小,先端极少有齿状突起,无贴体倒伏鳞毛。 新种西昌松毛虫和云南松毛虫、思茅松毛虫比较近似,但成虫前翅中横线与外横线之间明显形成褐色宽带;外生殖器前阴片愈合成一块。卵壳表面无花斑。幼虫胸部背面无明显毒毛带,但体侧有黑丛毛。根据以上几点,显然和其他两种松毛虫有区别。 新亚种赭色?

    From 32 rhesus monkeys the vermis cerebelli and the portion containing the dentate nucleus were fixed in 10% formalin.The animals of both sexes were divided into 4 age groups according to their dental status.Paraffin sections as well as frozen sections were prepared.The Purkinje cells per unit area of the cortex were estimated on sec- tions stained with methyl green and pyronin.With advancing of age the numbers of the Purkinje cells decreased gradually,with an average reduction from 1391 to 1065 in the...

    From 32 rhesus monkeys the vermis cerebelli and the portion containing the dentate nucleus were fixed in 10% formalin.The animals of both sexes were divided into 4 age groups according to their dental status.Paraffin sections as well as frozen sections were prepared.The Purkinje cells per unit area of the cortex were estimated on sec- tions stained with methyl green and pyronin.With advancing of age the numbers of the Purkinje cells decreased gradually,with an average reduction from 1391 to 1065 in the males and from 1203 to 1108 in the females.Histochemically the lipofuscin pigments differed from melanin and hemosiderin.They were almost insoluble in fat solvents,readily stained by Sudan black B,and were PAS-positive.The pigments in group Ⅳ usually appeared acidfast with the long Ziehl-Neelsen method,while those in the younger age groups were stained poorly or not at all.With Schmorl's ferricyanide method,only the pigments in the Purkinje cells of group Ⅳ reacted positively.Theese characteristics indicated that the pigments belonged to the ceroid-type lipofuscin as des- cribed by Pearse (1960).The magnitude of the pigments in both types of cells was es- timated in the Sudan black B-stained sections.In both sexes the numbers of pigmented cells and the cells with higher grades of pigmentation were found to be increased con- comitantly with the increase of age.The difference were statistically significant.The pigments of Purkinje cells were more or less uniform in size and accumulated lateral to or above the nuclei.The pigments in the neurons of dentate nucleus varied in size and distribution in the cytoplasm.In both types of the cells pigments were found occasion- ally in the dendrites.

    用狝猴32只,分雌雄两批,按齿序情况分为4个年龄组。取小脑蚓体及含齿状核的部分,用10%福尔马林固定,作石蜡切片及少量冰冻切片。在甲绿(口派)啷咛染色的切片止, 计算了蚓体局部皮质内单位面积上的浦肯野细胞的数量,随年龄增加浦肯野细胞数递减。在雄性平均值由1391减至1065,在雌性由1203减至1108。用组织化学方法证明齿状核神经元及浦肯野细胞内的色素不是黑素或含铁血黄素,几乎不被脂溶剂溶解,易染苏丹黑,PAS反应阳性。用Ziehl-Neelsen长法染色第Ⅳ年龄组普遍有抗酸性,低年龄组反应较弱,成为阴性。对Schmorl氏铁氰化物,仅第Ⅳ组浦肯野细胞内色素呈阳性反应。这些性质表明色素为Pearse所描述的类蜡型脂褐素。在苏丹黑染色切片上,将两类细胞的脂褐素含量分别确定等极,计算了各年龄组内含各级色素的细胞所占百分数。在雌雄两性,含色素的细胞数,及色素合量高的细胞数,均随年龄增进而加多。这些数据经统计学分析,证明差异显著。在浦肯野细胞内色素大致均匀,分布多集中于胞核两侧或上端;在齿状核细胞内色素大小与分布很不一致,两类细胞中均可偶见分布到树突中的色素。

    This paper presents results of our observations of the testicular development of the Rhesus Monkey, Alacaca imdatta Zimmermann. The purpose of the paper is to determine the degree of sexual maturity in the different age groups.In accordance with the differences of the dental formula, as caused by the eruptions of molars, 4 age groups may be distinguishable as follows:Altogother 54 monkeys were used, of which there were 11 of the first group, 20 of the second, 12 of the third, and 11 of the fourth.The results...

    This paper presents results of our observations of the testicular development of the Rhesus Monkey, Alacaca imdatta Zimmermann. The purpose of the paper is to determine the degree of sexual maturity in the different age groups.In accordance with the differences of the dental formula, as caused by the eruptions of molars, 4 age groups may be distinguishable as follows:Altogother 54 monkeys were used, of which there were 11 of the first group, 20 of the second, 12 of the third, and 11 of the fourth.The results of historical observations are as follows:In group 1 and group 2, there are many germinal epithelial cells and onlv a few primary spermatogonia found in the seminiferous tubules.In group 3, in six of the younger animals, the testicular development as well as the cellular constituents of the testis are similar to that of group 1 and group 2. On the contrary, with the six older animals of the same group, the seminiferous tubules are larger with Sertoli cells well differentiated and the spcrmatogonia much increased in number. Besides, there are some animals which have begun to produce primary spermato-cytes, and in one of them even a few spermatoxoa are found in some of the seminiferous tubules.In group 4, all animals, with a single exception, are sexually mature, with spermatozoa developed in all seminiferous tubules.We may thus say that almost all of the animals in the early age of group 4 have reached sexual maturity.

    本文用54只正常猕猴按齿序分组研究了精巢的发育状况,结果如下: 1.个体发育年龄在第Ⅰ组和第Ⅱ组的所有动物,毫无例外地都没有表现出性细胞的发育——精细管内只有大量的生殖上皮细胞和少量的性原细胞。 2.第Ⅲ组有两种情况:其一,本组初期的6只动物,其精细管内细胞成分仍然和第Ⅰ、Ⅱ组的相似;其二,本组中后期的6只动物其精细管的直径增大,精细管内的生殖上皮细胞已分化,精原细胞数量剧增,有了支持细胞和初级精母细胞(其中仅1只动物还没有精母细胞),支持细胞核基位;甚至其中1只动物的个别精细管内已有了少数精子,这说明精子发生的首要特征在本组后期的1只动物上已开始出现。 3.第Ⅳ组的11只动物中,除了1只动物的精细管内尚未出现精子外,其余10只动物都有了精子发生的各级成分,有了数量不等的精子。 因此,若以齿序为标准来划分雄性猕猴的性成熟阶段,则结果表明,第Ⅳ组初期(即第三臼齿刚出齐后的时期)的绝大多数个体都达到了性成熟的时期,精细管内有了精子。

     
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