1N-COUNT [usually plural, oft a pair ofNOUN]卡钳;卡尺Calipers are an instrument consisting of two long, thin pieces of metal joined together at one end, and are used to measure the size of things. 卡钳;卡尺
2N-COUNT [usually plural](装在腿上帮助行走的)双脚规形夹Calipers are devices consisting of metal rods held together by straps, which are used to support a person's legs when they cannot walk properly. (装在腿上帮助行走的)双脚规形夹