可能厂家认为用户不会同时使用，就没有设置互锁功能。

Manufacturers think that the user may not used simultaneously, there is no set interlocking function.

youdao

可能厂家认为用户不会同时使用，就没有设置互锁功能。

Manufacturers think that the user may not used simultaneously, there is no set interlocking function.

youdao