管汇系统安全受到严重威胁。

Manifold system security is seriously threatened.

youdao

应用于钻井和完井系统、钻井四通、采油树、油管头和管汇。

Should be used for well drilling sum finish well system, well drilling Sitong, Christmas tree, Oil pipe head sum administer remit.

youdao

应用于钻井和完井系统、钻井四通、采油树、油管头和管汇。

Should be used for well drilling sum finish well system, well drilling Sitong, Christmas tree, Oil pipe head sum administer remit.

youdao