halfnutn.对开螺母
halfn.一半;下半场;半学年adj.一半的;不完全的adv.一半地;不完全地
half as many againn.半倍(一倍半)
half-speed shaft半速轴
Half bridge driver半桥驱动
half-dry process半干法
half-rigged mast半装帆桅柱
half-lap winding半叠包绕组
half-round screw半圆头螺钉
half-period zone半周期带
half adder circuit半加器电路
half-power angle半功率角