本文主要内容,是建议一种适用单三角锁(实标上不受此限)按方向测的一种平差法。这一方法的主要特点是平差过程中尽量充分地利用单三角锁中所存在的一切特性,来使平差计算工作简单。一、方向编号 The main content of this paper is to propose a kind of adjustment method for single triangle lock (not subject to this limit) according to the direction of measurement. The main feature of this method is to make the best use of all the features that exist in the single triangle lock in the adjustment process to make the adjustment work easy. First, the direction number