differential pressure-relief valve释压差活门 differential global positioning system 微分全球定位系统 ..
双语例句
1
Requirements: the pressuredifferentialreliefvalve must operate to maintain the "zone" between the two check valves at least 2 PSI less than the supply pressure.
要求：压差安全阀必须具有将两个止回阀之间的“区域”压力维持在比供应压力低至少2 P SI的功能。
2
Purpose: To test operation of pressuredifferentialreliefvalve.
目的：检测差压安全阀的工作性能。
3
Record this as the opening differentialpressure of the reliefvalve.