headstock
特殊用法all-geared headstock1.■全齿轮床头箱, 全齿轮主轴箱bogie beam headstock1.■转向架制动梁头fast headstock1.■固定式前顶针座, 床头, 固定架loose headstock1.■尾座后顶尖座, 床尾selective headstock1.■变速箱, 床头箱sliding headstock1.■滑动式前顶针座2.■活动式床头; 滑动主轴箱3.■滑座头spindle headstock1.■床头, 前顶针座, 主轴箱headstock of grinding machine1.■磨床头