差速器齿轮齿隙调整
differential gear backlash adjustment
单级减速齿轮传动式涡轮机
single reduciton geared turbine
滑动齿轮传动
sliding -gear transmission
滑动齿轮传动系
sliding gear transmission
内平动齿轮传动
interior translation gear transmission
internal parallel move gear transmission
平动齿轮传动
Parallel move gear transmission