Then, the paper essentializes the two key problems in the course of building a three-dimensional monitor network: the optimum geometrical graph and the precision distance surveying.

同时，简要分析了建立高精度的测边三维监测网的两个关键问题，即最优构形和精密光波测距。

youdao

Viper Strike means these aircraft are capable of hitting a large number of targets with great precision from a distance of several kilometres.

ECONOMIST: Cheap smart weapons