这一理论的正确性在双质体调速式振动放矿机的试制中得到了证明。

The correctness of the theory has been verified in the testing of the dual mass vibrating feeder.

youdao

这一理论的正确性在双质体调速式振动放矿机的试制中得到了证明。

The correctness of the theory has been verified in the testing of the dual mass vibrating feeder.

youdao