A clamping device of metal or wood, usually consisting of two jaws closed or opened by a screw or lever, used in carpentry or metalworking to hold a piece in position.
虎钳由金属或木头做成的钳夹工具，通常由两个靠螺旋或标杆进行开合的部件组成，用于木工业或五金业中使物件定位
A flat metal plate for gauging the accuracy of a plane surface in precision metalworking.
平面规，测平仪在精密金属加工中用于测定平面表面精度的金属平板
