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Results The ozone could cause death to flyblow and some of the pupa and adult of housefly and make the pupa of housefly eclosion restrain and filial generation of housefly nervure variation.
结果O3对家蝇卵有致死作用；O3对蛹有一定杀伤作用，使羽化受到明显抑制，羽化时间相对延长；O3对成蝇有一定致死作用，存活的家蝇进行传代，子代F1、F2、F3均出现短翅和翅脉变异，但对子代性别无明显影响。
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BACKGROUND: Bone marrow mesenchymal stem cells of mice are different from human and rats. The difficulties of culture, sustaining impermanency activity of BMSCs after passage and short-term effect of stem cells tracking limited the study of mice.
背景：小鼠骨髓间充质干细胞培养不同于人及大鼠，培养扩展难度高，传代后干细胞活性保持时间短；又鉴于干细胞本身特点，使现有干细胞示踪方法作用时间短，这些因素均影响小鼠骨髓间充质干细胞的实验研究。
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Supported by: the Youth Foundation of National Natural Science Foundation of China, No. BACKGROUND: Bone marrow mesenchymal stem cells of mice are different from human and rats. The difficulties of culture, sustaining impermanency activity of BMSCs after passage and short-term effect of stem cells tracking limited the study of mice.
摘要背景：小鼠骨髓间充质干细胞培养不同于人及大鼠，培养扩展难度高，传代后干细胞活性保持时间短；又鉴于干细胞本身特点，使现有干细胞示踪方法作用时间短，这些因素均影响小鼠骨髓间充质干细胞的实验研究。
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Purging influences the Kefir grains greatly, the vril of the Kefir grains can only be the vril we need under the continuative culture for 16 generations (pH3.75) even though we purge it every other generation. Under the same technological condition, we draw such a conclusion, so it is of more practical significance for us to use the method of non-purging continuative subculture.
清洗对开菲尔粒的影响极大，既使采用隔代清洗开菲尔粒的活力也需连续培养十六代才能达到所需活力（pH值3.75），在工艺条件完全相同的情况下得到这一结论，显然采用不清洗连续传代更具有实际意义。
- 更多网络解释与使传代相关的网络解释 [注：此内容来源于网络，仅供参考]
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street virus：街毒
在自然条件下,能使狗等感染的病毒,称为街毒(Street virus). 街毒对人、家畜及某些野生动物的毒力很强,而对家兔的毒力较弱. 把街毒接种于家兔脑内,连续传代后,对家兔的毒力逐渐增强,且毒力稳定,称为固定毒(Fixed Virus). 自然感染街毒的动物,