half one一点半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 work half study program半工半学制half-turn while in hanging悬垂转体180°half excavating construction半幅开挖施工half horse and half alligator"半马半鳄鱼"(美国西部早年爱吹牛的拓边居民和船夫的别称)half-countersunk rivet head半埋头式铆钉头Half-space Green's functionhalf-compression relief cam降压调节凸轮Half stretch yarn khaki drill半弹力纱卡half-space dynamic response动力响应half- circle bamboo lagging半圆竹背板