• The paper introduced the development, design and structure of the thin seam coal shearer with an electric magnetic sliding differential speed control in detail.

    详细介绍电磁调速煤层采煤开发设计思路、结构特点;

    youdao

  • The paper introduced the development, design and structure of the thin seam coal shearer with an electric magnetic sliding differential speed control in detail.

    详细介绍电磁调速煤层采煤开发设计思路、结构特点;

    youdao

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