A new graphic method to determine the upper support point of hydraulic lifter for circle gates was presented and discussed.

论述了确定弧形闸门液压启闭机上支点位置的图解法。

youdao

A new graphic method to determine the upper support point of hydraulic lifter for circle gates was presented and discussed.

论述了确定弧形闸门液压启闭机上支点位置的图解法。

youdao