1. 测径器：called shot 投放药剂的命令 | calliper 测径器 | calm air 无风

2. danci.edu.pub

2. 两脚规：Calliopsis 波斯菊 | calliper 两脚规 | callipers 测径规

3. calliper

3. 活塞卡钳==鲍鱼：刹车碟==迫力碟==Rotor | 活塞卡钳==鲍鱼==Calliper | 刹车片==迫力皮/来令片==Brake pad

4. calliper

4. 卡规 轮尺：calliopsis /波斯菊/ | calliper /卡规/轮尺/ | callipers /弯脚规/测径器/

1. -> see caliper

1. an instrument for measuring the distance between two points (often used in the plural)

    Synonym: caliper

1. measure the diameter of something with calipers

    Synonym: caliper