-
The structure, principle and application of plunger-type valves at gas station are introduced.
介绍了柱塞阀的结构、工作原理及其在煤气站的应用。
youdao
-
The Safety valves pilot valve plunger driven in front of mouth;
其导阀口前面有导向柱塞；
youdao
-
The Safety valves pilot valve plunger driven in front of mouth;
其导阀口前面有导向柱塞；
youdao