卵壳

luǎn ké
  • egg shell;chorion
卵壳卵壳
卵壳 [luǎn ké]
  • [eggshell]各种鳐类或其他板鳃鱼类的暗色角质或革质的卵壳

  1. 结果表明:F1代卵壳颜色及形态相似于天蚕,受精孔数目F1代与天蚕相似为7~10个,略少于柞蚕。

    The results were as follows . The color and shape of egg shell of F 1 generation were similar to those of giant silkworm . The number of micropyles of F 1 generation was 7-10 , near to that of giant silkworm and less than oak silkworm .

  2. 断面差异主要与卵壳中层的构造不同有关。

    The differences of the section structure related to the structure of the middle layer of egg shell .

  3. 一种从雉类孵化卵壳中提取DNA的方法

    A Method for DNA Extraction from Incubated Eggshells of Pheasants

  4. X射线衍射对3种雉类卵壳晶粒度的研究

    An X ray diffraction study on the grain-size of eggshell from three species of pheasants

  5. 从鸟类已孵化的卵壳中提取DNA属于一种非损伤性取样技术,在鸟类分子生态学研究中具有广阔的应用前景。

    Extracting DNA from eggshells is a non-invasive sampling method which has a wide application in the studies of avian molecular ecology .

  6. DDT使卵壳变得特别薄而且易碎,因此小鸟常常在孵化前夭折。

    DDT caused the birds ' eggshells to be extremely thin and fragile , so that the young died before they could hatch .

  7. 白鹳和黑鹳的卵壳中均检出超量重金属污染物铅(Pb)、镉(Cd)、锶(Sr)、砷(As)、汞(Hg),说明母体也受到了一定程度的污染;

    Heavy metal pollutant such as Pb , Cd , Sr , As and Hg were examined out in eggshells of both white stork and black stork , which indicates that the mother bodies have been polluted .

  8. 本文采用扫描电镜观察了金鱼(Carassiusauratus)卵壳膜(chorion)表面结构和精子入卵过程。

    The surface structure of chorion , sperm penetration and exocytosis of cortical alveoli in goldfish , Carassius auratus , were examined by scanning electron microscopy .

  9. 条纹斑竹鲨卵壳腺的大小随鱼体的生长而增大,达到性成熟时约80mm×50mm。

    The size of the oviducal gland increases as the fish body gets bigger and is about 80 mm × 50 mm at the sex mature stage .

  10. 白额鹱卵壳的扫描电镜观察

    Observation on the eggshell of white-fronted shearwater with scanning electron microscopy

  11. 乌龟卵壳结构的研究

    Study On The Structure Of Shells From Eggs Of Chinemys Reevesii

  12. 卵壳蛋白族的分子生物学研究

    Advances in Molecular Biological Studies of Silk Moth Chorion Protein Families

  13. 卵壳膜源于滤泡细胞。外周为透明带和卵泡细胞。

    The sticky membrane of eggs is derived from the follicle cells .

  14. 岩鹭卵壳的超微结构及其元素组成

    Ultrastructure and element composition of the egg shells in eastern reef heron

  15. 从卵壳里钻出一条又瘦又饿的毛毛虫。

    Out of the egg came a tiny and very hungry caterpillar .

  16. 桑蟥卵壳断面构造与家蚕相似。剖宫产分娩对婴儿健康影响的前瞻性研究

    Effects of Cesarean Section on Infant Health : Matched Prospective Cohort Study

  17. 日本血吸虫卵壳蛋白编码基因的扩增及克隆

    Amplification and Cloning of Eggshell Protein Gene of Schistosoma japonicum

  18. 朱鹮卵壳的微观结构和成分研究

    Study on the microstructure and components of eggshell of Japanese Crested Ibis

  19. 卵乳白色,近椭圆形,卵壳韧而软。

    Egg ivory , oblong and the shell is toughening and soft .

  20. 海洋鱼类卵壳亚微结构的研究

    Study on the ultrastructure of the chorion from marine fishes

  21. 绿尾虹雉卵壳超微结构和化学成份的研究

    Study on the microstructure and chemical composition of the Eggshells of Chinese Monal

  22. 鸡卵壳、壳膜超微结构及化学成分的研究

    Ultrastructure of Eggshell , Eggshell Membrane and Chemical Components

  23. 日本血吸虫卵壳蛋白基因的克隆与表达

    Cloning and expression of Schistosoma japonicum eggshell protein gene

  24. 八种鸡形目鸟类卵壳及壳膜超微结构观察

    Observations on ultrastructures of eggshell and shell membranes of eight species of Galliformes

  25. 日本血吸虫卵壳白基因的体外扩增

    In Vitro Amplification of Eggshell Protein Gene of Schistosoma Japonicum by Polymerase Chain Reaction

  26. 家蚕卵壳蛋白的紫外光谱性质

    Properties of ultraviolet spectrum of domestic silkworm chorionins

  27. 孔雀卵壳成分分析及超微结构观察

    The ultrastructures and components of eggshells from peafowl

  28. 同源性分析表明该基因编码蛋白质可能具有肝片吸虫卵壳前体蛋白相似的性质和功能。

    Homology analysis indicated that the protein is identical to the eggshell precursor protein of F.

  29. 胚胎发育所需的无机物来自卵黄和卵壳。

    Inorganic material in both yolk and eggshell was used by the embryos in development .

  30. 家蚕、野蚕与桑蟥卵壳表面构造的观察比较

    Observation on chorionic surface structures of domestic silkworm , wild silkworm and mulberry white caterpillar