校准环的英文

calibrating ring

• 校准:    calibration; corre ...
• 环:    ring; hoop
• 准环:    almost ring

例句与用法

1. Measurement of plain internal diameters for use as a master rings or ring guages
   用做校准环或环规的普通内径的测量
2. Qualified plain internal diameters for use as master rings and ring gages , measurement of
   用作校准环规和环规的合格普通内径测量