All mice were challenged with highly virulent tachyzoites to observe the survival time.

用弓形虫速殖子腹腔攻击感染小鼠，观察小鼠的生存时间。

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Objective To observe the survival time, pathological change and liver regeneration in different kinds of reduced size liver transplantation in steatotic rats.

目的探讨大鼠脂变供肝用于减体肝移植的适宜植肝量及病理类型。

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The model of mice with acute myocardial ischemia was made by subcutaneous injection of Iso in order to observe the survival time in normobaric hypoxia of mice in each group.

②对异丙肾上腺素所致急性心肌缺血小鼠缺氧存活时间的影响：采用异丙肾上腺素皮下注射制备小鼠急性心肌缺血模型，观察各组小鼠常压耐缺氧存活时间。

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