用途:适用于平行四边形法、异长法观测弛度,可将经纬仪固定于铁塔角钢上。
uses:to observe the sagging by means of the parallelogram method and different length method .can mount the theodolite on the pylon
放大倍数 (magnification factor):4
适用角铁(applicable angle iron):∠56~125
重量(weight(kg)):1.6
驰度仪自带铁塔固定架,可配钢杆固定架