Therefore, to guarantee the machine 's operating safely and economically is to be an important problem, which should be faced to and handled by corporations and power-producing enterprises.

因此，保证这些大型旋转机械安全、经济地运行，成为企业和电力生产部门面对的重大课题。

youdao

Therefore, to guarantee the machine 's operating safely and economically is to be an important problem, which should be faced to and handled by corporations and power-producing enterprises.

因此，保证这些大型旋转机械安全、经济地运行，成为企业和电力生产部门面对的重大课题。

youdao