seal of tube的意思|示意

Therefore we decide to use wave-shaped tube mechanical seal instead of the original one to guarantee the normal production.

为保证生产正常进行，我们决定采用波纹管式机械密封来取代原密封。

According to the functional requirements, their technical characteristics consist of two ways on seal, ceramic package seal weld and tube polysulfone whirl forge seal, and the compact structure.

根据功能要求，本电气贯穿件的技术特点是采取了陶瓷组件封焊和钢管聚砜旋锻密封两种密封方法，以及紧凑的结构方式。

The tube connector and "O" shape seal ring of the valve must be kept clean, and the cross section line of the tube connector cannot be painted.

联接管与阀口“O”形密封圈套入处应保持清洁， （见图20） 联接管有剖面线的部位处不能涂油漆。