seal with double-cone

Double safety sealed with an outer shrink wrap film and an inner bottle freshness seal.

双重安全密封,瓶盖收缩包装膜和内瓶新鲜封纸.

With an experimental method, the liquid film pressure between the two faces and the seal face temperature rising are measured and analyzed for a double spiral groove mechanical seal.

通过实验方法，研究了内外双螺旋槽机械密封端面间的液膜压力和端面温升。

The Submersible Pump and Motor have a double seal with a moisture detection system.

配置潮气监测系统的潜水泵和电机具有双重密封装置.

The end face structure of a new type upstream pumping mechanical seal with double seal dams was developed because the solid particles were easily absorbed by the spiral groove type upstream pumping mechanical seal with the grooves on the internal wall to make the particles be damaged.

针对内径开槽的螺旋槽型上游泵送机械密封易于吸入固体颗粒而产生磨粒磨损的缺陷，研制开发出具有内外双密封坝的新型上游泵送机械密封端面结构。

A new type self contained and double faced mechanical seal has been succesfully developed for marine pumps which can operate with zero leakage under sea water and make pumps operate normally under an evacuated condition.

该文介绍了一种能使舰船用海水泵实现零泄漏，并在抽空状态下正常工作的新型集装式双端面机械密封。