在道路测设中,为便于工作迅速展开并使作业专业和流水化,每每将一个测量队划分成若干专业组,如:选线(或称定线俗称大旗),中线(或称导线、有时亦分成测角与拉距两组),水平,断面,桥涵调查,地形,钻探等。所有这些专业组中,除选线外,影响各组进度的与中线组为甚。而整个中线组速度的快慢,在极大的程度上,又取决于拉链。为此,本文就拉链工作作如下介绍,希望同志们批评指正。一、速度:平原、一般丘陵及第三类山岭区地形,应以间断的跑步速度前进(其中间息时间为:瞄点、取 In the road survey, in order to facilitate the rapid deployment of work and professional operations and streamlined, often a measurement team is divided into a number of professional groups, such as: alignment (also known as alignment commonly known as the banner), the middle (or wire, Sometimes divided into two groups of angle measurement and pull away), level, section, bridge and culvert survey, topography, drilling and so on. In all these professional groups, except the selection line, the group that affected the progress of each group was even more than the middle group. The speed of the entire midline group, to a large extent, depends on the zipper. To this end, this article describes the zipper work as follows, I hope comrades criticism. First, the speed: the plain, the general hilly and terrain of the third category of terrain, should be running at an intermittent speed (the intermission time for: aiming point, take