The method is also applicable for volume pipe of other type.
此方法也适用于其它类型的体积管。
Standard volume pipe used for flow meter's calibration shall be calibrated every three years by metering calibration department.
用于检定流量计的标准体积管每三年要由计量检定部门检定一次。
Standard volume pipe used for flow meter's calibration shall be calibrated every three years by metering calibration department.
用于检定流量计的标准体积管每三年要由计量检定部门检定一次。
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