测量角度 Measure angle ; Measuring Angle ; MEA ; take the angle

量角器分度规 protractor ; semicircular protractor

弦线量角度尺 scale of chord

角度量具 angle block ; [机] angle measuring tool

角度测量器具 angle measuring instruments

角度量块 angle gauge block ; Angle block gauge

电子角膜度量器 electronic corneal pachymeter

胸骨角度测量器 sternogoiometer

角度测量仪器 angle measuring instrument ; Angle Instruments

角度量 angular metric