Laughter is a pressure valve which releases muscle tension.

大笑是一个压力阀，它可以释放肌肉紧张。

Vacuum pressure valve of the valve is below standard atmospheric pressure.

真空阀工作压力低于标准大气压的阀门.

According to flow in a different, balanced spool valve the pressure can be pre-pressure, can also be a back pressure valve .

根据流向不同，平衡阀芯所受的压力可以是阀前压力，也可以是阀后压力。

Casing back pressure valve plays a important role in well cementing operation as a casing accessories.

套管回压阀作为一种简便的套管附件,在固井施工作业中起着重要作用.

The operating principle, structure and advantages of dual controlled gas constant pressure valve are analyzed.

分析了双控燃气稳压阀的工作原理 、 结构和优点.

Pressure valve test can be conducted in a dedicated test rig can also be carried out in an integrated test bed.

压力阀的测试可以在专用的试验台上进行，也可以在综合性试验台上进行。

The company was founded in 2007, the main marketing car motorcycle engine oil seal oil seal fluoroelastomers Aprons high-pressure valve cap rubber tubing, etc…

本公司成立于2007年，主要营销汽车摩托车发动机油封氟橡胶汽门油封胶圈高压帽油管等各类橡胶件。

In particular, watch out to seal and gasket materials data, the comparison of the level of the Department of the resolution of the pressure valve - Redu additional value.

要尤其留神密封资料和衬垫资料，该署资料比较水平上决议了阀门的压力-热度额外值。