... pressure-difference detector 压差探测器 pressure-difference valve 压差调节阀 pressure-difference sampler 压差式采样器 ...
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pressure difference valve piston 压差阀活塞
constant difference pressure-reducing valve 定差减压阀
pressure difference bypass valve 压差旁通阀
pressure difference control valve 压差控制阀
aortic valve transmittal pressure difference 主动脉瓣跨瓣压差
Pressure difference self-protected reversing valve 差压自保式换向阀
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