overhead cam上凸轮
overheadn.经常开支;普通用费adj.高架的;在头上的adv.在头顶上;在空中;在高处[计算机] 总开销.
overhead travelling drilling machine悬动钻床
Overhead brine tank refrigerator car车顶冰箱冷藏车
overhead power lines into underground电力线路下地
overhead counterweight bascule bridge衡重式开合桥
overhead insulated-covered conductor架空绝缘导线
overheadinsulation-coveredconductors架空绝缘线路
Overhead Sign Structures Design Manual高架信号结构设计手册
overhead sling with balancer attachment带平衡器附属装置的吊带