A.100mm;300mmB.200mm;200mmC.300mm;100mmD.400mm;200mm
A.導(dǎo)軌;滑輪B.拉桿;滑輪C.導(dǎo)軌;拉桿D.制動(dòng)桿;拉桿
A.50B.70C.80D.100