Extra Extra Hard 超超硬;特超硬;
Methods: Cardiopulmonary circulatory function during 7 day 6 ° head down bed rest ( HDT) in male young volunteers was measured with a XXH 2000 pulmonary circulation and cardiac function instrument.
方法:XXH2000型小循环心功能检测仪检测人体头低位6°卧床(HDT)7d心肺循环功能变化。
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