为设计开发新型高压断路器操动机构提供了有效白勺手段。

These provide an effective method for design and development of new actuator for high-voltage breakers.

youdao

为设计开发新型高压断路器操动机构提供了有效白勺手段。

These provide an effective method for design and development of new actuator for high-voltage breakers.

youdao