Noun:

1. a motor vehicle propelled by half tracks; frequently used by the military

2. a track that goes around only rear wheels

halfwitn.笨蛋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 - back - channel半背沟half-rotating mechanism半转机构half-body of revolution半旋转体half-amplitude duration半幅宽度,半幅值持续时间half wavelength criterion[电] 半波长准则half lethal concentration半致死浓度half-round bastard file粗齿半圆锯half-wave matching stub半波匹配短截线half-word i/o buffer[电] 半字输入/输出缓冲器Half V-shaped switching半“V”字形