The advantages of VLF-EM method are portable, simple, economic and efficient.

甚低频电磁法(VLF - EM)，具有仪器轻便、方法简单、经济高效等优点。

youdao

The advantages of VLF-EM method are portable, simple, economic and efficient.

甚低频电磁法(VLF - EM)，具有仪器轻便、方法简单、经济高效等优点。

youdao