The applying prospects of the method of active source eletromagnetic signal homing is demonstrated with examples.

用上述方法对城市地下人防工程进行地面勘测定位是行之有效的?。

youdao

The applying prospects of the method of active source eletromagnetic signal homing is demonstrated with examples.

用上述方法对城市地下人防工程进行地面勘测定位是行之有效的?。

youdao