钢轨直度测量仪检定规程
Verification Regulation of Measuring Instrument for Straightness of Rail
2011-04-02
2006 No. 1256
The Measuring Instruments (Automatic Rail-weighbridges) Regulations 2006
2006年测量仪器(自动轨道衡)规例
AS 3778.6.3-1992
Measurement of water flow in open channels, Part 6.3: Measuring devices, instruments and equipment - Calibration of rotating element current-meters in straight open tanks
明渠水流测量 第6.3部分:测量装置、仪器和设备.直开式水箱中旋转元件流量计的校准