Objective To study the effects of vitamin K on bone metabolize in simulated weightlessness rats.
目的探讨维生素K对模拟失重大鼠骨质的影响，为失重骨丢失的防护提供实验依据。
The study took two sets of rats, both of who were subjected to an environment that simulated weightlessness.
实验设置了两组老鼠，都放置于模拟失重的环境中。
Method Weightlessness was simulated by tail suspension in female rats.
方法采用大鼠尾悬吊法建立模拟失重模型。
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