Independent let-off worm wheel box, can assure transmission moment.

送经机构采用独立蜗轮箱，确保传动力矩。

In laboratory wheel-box testing and LPR method were used to test the inhibitor film persistence.

在室内采用LPR 电化学法和转轮试验法对缓蚀剂的膜持久性进行了评价。