traverse control meaning in English

横向控制
横转控制

In view of large scale pierce surveys demand for error determinate accuracy , this paper , starrting with adjustment of condition equations , gives out a group of strict formula which can be applied to traverse control over piercing error determinate
鉴于大型贯通测量对误差预计精度的要求，从条件平差角度入手，推导出一组适用于地面控制导线对贯通面影响的误差预计严密公式。