长办所属名三角测量队现有钢标多为美式的,其结构不如夏杂高标稳固,二级风以上,就不能观测,同时在站台上走动亦影响内架基座的稳定,如果有仪器在上面,气泡左右幌劫,就更显而易见,因而观测员在站台上进行观测便有些心慌,影响规测精度与效率,第四三角队根据第三三角队的经验并加以改进,使钢标的稳固与刚性加强了,现介绍 The long-established name triangulation team currently has many steel marks that are American-style. Its structure is inferior to the summer high standard. If it is above the level two wind, it cannot be observed. Walking on the platform also affects the stability of the internal frame base. It is even more obvious that the instrument is on the top and the air bubble is looted. Therefore, the observation by the observer on the platform is a little flustered, affecting the accuracy and efficiency of the survey. The fourth triangle team improved the experience of the third triangle team and improved the steel mark. Steady and rigid strengthened, now introduced