Petroleum enterprises establish a fair competition mechanism, a mechanism to create a competitive environment posts.

建立石油企业内部公平竞争机制，创造竞争上岗的机制环境。

youdao

Petroleum enterprises establish a fair competition mechanism, a mechanism to create a competitive environment posts.

建立石油企业内部公平竞争机制，创造竞争上岗的机制环境。

youdao