After modified design, the M-827 measuringrule used to measure step diameter can measure the actual dimension deviation of machined parts directly and quality of the parts is improved too.
改进设计的M—827止口直径测量尺能够直接测量出被加工零件的实际加工尺寸偏差，提高零件加工质量。
2
This paper analyses the rule of variations measuring impedance of distance relay when phase to phase fault occurs between two lines on double circuit line on the same pole (DLSP).
从理论上分析了同杆并架双回线跨线不接地故障时距离继电器测量阻抗的变化规律。
3
This article introduces a kind of intelligent measuring system, which accords with the rule of measuring for tapered roller bearing, and can actualize auto-measuring for SDW and auto-picking.