压差开关用于检测两个点之间的压力差。

The differential pressure switch is used to detect the pressure difference between two points.

压力差使得液体通过虹吸管。

Difference of pressure makes a liquid flow through a siphon .

压力差使得液体通过虹吸管.

Difference of pressure makes a liquid flow through a siphon.

利用储层的排替压力及与之对应的断裂带中断层岩的排替压力差定量评价了B29号断裂的封闭能力。

Seal ability of B29 fault was evaluated quantitatively by use of differential displacement pressure between reservoir displacement pressure and displacement pressure of fault rock in fault zone.

电磁阀一般流通系数很小, 而且工作压力差很小.

Solenoid valve flow coefficient generally small, and the work of a very small pressure difference.

说明松质骨内固有的膨胀压与局部的压力差减少，最后达到相对平衡。

This indicates the differences between internal oncotic pressure and local pressure in cancellous bone are decreased until balance.

在此基础上测试得到了HDPE瓶及其铝箔封口的的临界压力差.

Base on these , we measure the boundary pressure on the HDPE bottle and its aluminum seal.

主流通道内侧压力差主要产生在激励器与主流出口之间的上下壁面上.

The pressure difference on the wall between actuator and the exit of primary jet is great.

外伤性横膈膜疝气，多因腹部钝伤造成腹膜与胸腔问压力差急剧增加所致。

Traumatic rupture of the diaphragm from blunt trauma is due to a sudden explosive increase in the pleuroperitoneal pressure gradient.

本文计算了不同来流条件下、不同间隙比情况下横管上下壁面、底床表面压力与切应力分布情况，指出了横管前后存在压力差和床面最易发生冲刷的位置。

The results showed that there was a pressure gap between two sides of the pipeline and the place where the scour most easily happened was illustrated.