Radar ship navigation system has the same field test question as an integral part of VTS.

导航雷达作为VTS系统不可缺少的一部分，同样存在着外场测试不方便的问题。

youdao

Radar ship navigation system has the same field test question as an integral part of VTS.

导航雷达作为VTS系统不可缺少的一部分，同样存在着外场测试不方便的问题。

youdao