n.微重力
Once, President George H.W.Bush's science adviser was asked about the benefits of doing experiments in weightlessness and microgravity. 过去，老布什总统的科学顾问曾问起在无重力或微重力环境下进行科学实验的收益。
Fluid is transferred cephalad in microgravity and simulated microgravity,and the pulmonary circulation is the first to be affected. 微重力或模拟微重力时体液头向转移，首先波及肺循环。
