Through the application of "finger oral" operation method, it can teach the staff to ensure their security and implement safety skills, and add a holy grail to create "intrinsically safe" mine.

通过“手指口述”操作法的应用，教会职工保证安全，实现安全本领，为打造“本质安全型”矿井增添一制胜法宝。

youdao

Through the application of "finger oral" operation method, it can teach the staff to ensure their security and implement safety skills, and add a holy grail to create "intrinsically safe" mine.

通过“手指口述”操作法的应用，教会职工保证安全，实现安全本领，为打造“本质安全型”矿井增添一制胜法宝。

youdao