auto lock safety joint

During the operation of well repairing,well auto isolator is important in safe production and environment protection.

在油田修井作业中,井口自封装置在安全生产、环境保护等方面发挥了重要作用。

The previous seal line proposed by Xu is too conservative, in which the criterion of almost not allowing the vapor to leak through the downcomer was set.

以往徐崇嗣提出的自封线以降液管几乎不漏气作为自封点。

Action mechanism of self-sealing behavior of Zn-Al-Mg-RE coating in a multilayer coating;

Zn-Al-Mg-RE涂层自封闭特性在复合涂层中的作用机制

The relationships of the self-sealing pressure of two types of direct acting gas regulators to its structural characteristics and inlet pressure are analyzed.

分析了两种直接作用式燃气调压器的自封压力与其结构特性和进口压力的关系,探讨了进口压力变化对两种调压器自封压力变化影响的差异。