Total-station instruments

Investment officer for nearly 20 million, put GPS receivers, water level, total station, flat instrument more than 10 sets of measuring instruments.

投入人员近20人次，投入GPS接收机、水准仪、全站仪、平板仪测量仪器10多台套。

The additive constant of the electro-optical distancemeasuring instrument and the total station instrument are the correction of the survey results using these instruments.

光电测距仪（含全站仪）的加常数是仪器测量结果的改正项目，是仪器检定项目非常重要的一项。