航天发射场的加注系统是提供燃料的重要设备，需要进行可靠性分析和评定，分析影响系统可靠性的因素，确定其可靠度。
Fuel supply system of launch site is a very important system, and its reliability analysis and evaluation is required for analyzing the influence factors and evaluating its reliability.
在航天领域，热控涂层材料性能退化是影响航天器寿命的关键因素之一，因而研究其性能退化规律，对于航天器寿命预测具有非常重要的意义。
In the spaceflight domain, performance decline of the thermal control coat is key factor which affects the space equipments 'life, so research its 'performance decline rules is very significance.
一般认为血容量减少是航天后立位耐力降低的一个重要因素。
It is believed that the reduction of blood volume might be one of the important factors.
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