在低温液体火箭发动机的试验中，对液体密度的测量是很重要的。
It is very important to measure liquid density in cryogenic liquid rocket engine test.
液体密度实时测量系统由力传感器、浮子、数据采集器、电脑软件组成。
The system of liquid density measurement consists of force sensor, float, data gather, and software.
液体密度实时测量系统由力传感器、浮子、数据采集器、电脑软件组成。
The system of liquid density measurement consists of force sensor, float, data gather, and software.
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