差速器动力锁定机构
differential power lock mechanism
调速器控制锁定机构
governor control locking mechanism
调速器锁定机构
governor locking mechanism
展开锁定机构
deployment
Deployable and lockable mechanism
大型升船机建筑结构
large ship-lifter structure
起升机构可回转
slewing hoisting mechanism
起重机起升机构
hoisting mechanism of crane
crane lifting mechanism
起重机新型起升机构
new hoisting mechanism for crane