Based on our discussion of length measurement device developed by the instrument 's design point.
给出了长度测量的计算公式。基于我们研制的测长仪讨论了仪器的设计要点。
Realize point by point actual measurement in GPS operation blind zones by the use of total station instrument, measuring line and other routine surveying methods.
三是通过全站仪、测绳等常规测量方法来实现GPS作业盲区物理点的逐点实测。
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