headgut前肠headn.头部；头脑；顶端；领袖；硬币的正面v.前进；为首；朝向adj.首要的；前面的head space adsorption顶空吸附法Head Personnel Branch人事科科长head - cutting face掘进工作面head slotting machine螺钉帽开槽机head-tape interface头带界面headward acceleration头向(足到头)加速度, 足向(头到足)过载head expansion device头部伸缩装置head-to-head bond聚合物头-头键合head-eapacity curve水头-容量曲线Head of a bearded man带胡须的男子头像