priming valve 中文意思是什麼
priming valve
解釋
初給閥-
Priming tundish valve
注液漏斗閥 -
There is no need of bottom valve in pipeline, only to ensure certain priming oil in pump body before work
管路中不需底閥,工作前只需保證泵體內儲有定量引油即可。
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