Ammonia and nitrite were not detected at the start, and no precipitation of fluoride salts was observed during these bioassays.
氨和亚硝酸盐含量均未检出在开始时，并没有降水氟盐的观察期间，这些生物测定。
High temperature phase change heat storage using molten fluoride salts is one of the key techniques for space solar thermal dynamic power system.
高温熔盐相变储热是空间太阳能热动力发电系统的关键技术之一。
High temperature phase change heat storage using molten fluoride salts is one of the key techniques for space solar thermal dynamic power system.
高温熔盐相变储热是空间太阳能热动力发电系统的关键技术之一。
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