calliper
noun (British English)(also caliper North American English, British English)
- callipers[plural]
an instrument with two long thin parts joined at one end, used for measuring the diameter of tubes and round objects (= the distance across them) 卡钳，测径器，两脚规，卡尺（用于测量管子、圆形物体的直径） a pair of callipers 一把测径规
- (British English) (North American English brace)[countable, usually plural]
a metal support for weak or injured legs 双脚规形夹（支撑无力或受伤的腿的金属支架）