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- Both the number of comet cells and the length of DNA migration increased with increasing of concent ration of tested substances. 其拖尾细胞百分率和DNA 迁移长度均随 受试物浓度的增加而增加,且有明显的剂量反应关系。
- Results : In certain concent ration , the three tested substances could induce the breakage of DNA single st rand and resulted in comet cells with tail. 结果:在一定浓度范围内,3 种 受试物均可直接引起离体小鼠睾丸细胞的DNA 单链断裂,出现拖尾的彗星细胞。
- That comet is invisible to the unaided eye. 那颗彗星只用肉眼是看不到的。
- Human tissue is made up of cells. 人体的组织是由细胞构成的。
- A tissue is a group of similar cells which have an identical general function. 组织是一组具有相同的一般机能的类似细胞。
- A comet is at perihelion when it is closest (=very close) to the sun. 彗星最接近太阳时，它就是在近日点。
- If I had binoculars, I could see that comet clearly. 如果我有望远镜，我就可以清楚地看见那颗彗星。
- Animal bodies are made up of cells. 动物的身体是由细胞组成的
- The comet's ice, heated by the sun, rapidly and spectacular sublimate to gas. 彗星上的冰块在太阳热的作用下迅速而壮观地升华成气体。
- Comet assay detects DNA single-strand breaks of single cell. 彗星试验研究和测定的是单个细胞DNA链断裂。
- A small mass of tissue or aggregation of cells. 结组织的小结块或细胞的聚集
- The central portion of the head of a comet. 彗核彗星头部的中心部分
- Why else might the comet have come undone? 是什么导致了慧星的灭亡?
- cometal cells [医] 彗星细胞, 尾状细胞(一种神经胶质细胞)
- Halley's comet calls on the earth every 76 years. 哈雷彗星每76年造访地球一次。
- The comet passed by in the twinkling of an eye. 俯仰之间，流星闪过。
- The prisoners shuffled along the corridor and into their cells. 囚犯们沿着走廊拖着脚步进入牢房。
- Halley's comet visits the Earth once in 76 years. 哈雷彗星每七十六年经过地球一次。
- The optical system of the eye stimulates cells of the retina. 眼睛的视觉系统刺激视网膜内的细胞。
- In that way, Pluto acts like a comet. 也就是说，冥王星的行为像一个彗星。
