1) tandem articulated gear
串联式减速齿轮
2) tandem articulated gear
串联式减速齿轮箱
4) tandem articulated type reduction gear
串行联结式减速齿轮
5) articulated reduction gear
联接式减速齿轮
6) articulated gear
联式减速齿轮
补充资料:串联式空习装药战斗部
[英文]:series shaped-charge warhead