青云翻译

Face with a lead-zinc mine in Inner Mongolia, RSM-SY5 (N)-based instrument to measure acoustic

In a lead-zinc ore in Inner Mongolia face with RSM-SY5 (n)-acoustic instrument to measure

Carries on the survey in the Inner Mongolian some lead-zinc mine working surface with RSM-SY5(N) sonograph

In Inner Mongolia with a lead and zinc mine benches RSM - SY Type 5 (N) acoustic measurement devices to

In a lead-zinc ore in Inner Mongolia face with RSM-SY5 (n)-acoustic instrument to measure