backing distance meaning in English

倒车距离

Analyze item by item the position of unintact cycle , the running clearance of unintact cycle , locking - deform , datum dimension regulating , repeatly install , power voltage wave and marking running etc . at the same time , we give the calculating formula to calculating the running marking random error , and use it to calculate the system error of big diameter measure instrument - - datum dimension frame error , gyro - wheel diameter error , error caused by circumstance temperature , error caused by backing distance , angle error , delay error of data collecting circuit , lathe main shaft running error , workpiece install partial error
对不完整圆的位置、不完整圆的转动间隙、锁紧变形、基准尺调整、重复安装、电源电压波动、标记转动等随机误差进行了逐项分析，并给出转动标记随机误差的计算公式。对大直径测量仪的系统误差?基准尺尺架误差、滚轮直径误差、环境温度引起的误差、后退距离引起的误差、角度误差、数据采集电路延时误差、车床主轴回转误差、工件安装偏心误差分别进行了计算，最后对误差进行合成。