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caliper

['kælɪpə, -ər] 名词
汽车 calliper (caliper (calliper (British English) vs caliper (US English))
珠宝 A jeweler or lapidary tool used for measuring gemstones accurately.
Caliper ['kælɪpəz, -ərz] 缩写
缩写, 外贸 calliper