First of all, You have to design the gravimetric network and a base stATion. Gravimeter observATion are usually made AT the corner of the square grid.

首先必须设计和布置测网，选择一个测量基点，而这些测网交点便是重力测量的观察点。

youdao

First of all, You have to design the gravimetric network and a base stATion. Gravimeter observATion are usually made AT the corner of the square grid.

首先必须设计和布置测网，选择一个测量基点，而这些测网交点便是重力测量的观察点。

youdao