针对油隔离泥浆泵单向阀拆卸难的情况，设计了简单有效的修复单向阀的工具。

Being directed against difficult disassemble of unilateral valve from oil isolated mud pump, a simple and effective tool for repairing of unilateral valve is designed.

youdao

针对油隔离泥浆泵单向阀拆卸难的情况，设计了简单有效的修复单向阀的工具。

Being directed against difficult disassemble of unilateral valve from oil isolated mud pump, a simple and effective tool for repairing of unilateral valve is designed.

youdao