in advance supports and protections

  • 超前支护

in advance supports and protections的用法和样例:

例句

  1. The advance support of intake and return aircourse needs a lot of plate girders in the comprehensive mechanized coal mining face.
    综采工作面的进回风巷超前支护要用很多板梁。

in advance supports and protections的相关资料:

临近单词

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