量程校准气 span calibration gas

高程校正系数 elevation correction factor ; ecf

远程校准 e-trace ; Internet-enabled calibration

满量程校准 full scale calibration

满量程校验 R-Cal

高程校正 [地质] [测] elevation correction

齿轮导程校正机 gear lead checker

针盘螺纹导程校验器 dial thread lead checker

快乐校园工程 "happy campus projects"

短行程校正 Short stroke correction