• It is a practical problem to allocate oil transmission force of the operational field oil depot scientifically and reasonably which the oil support would face during wartime.

    如何科学合理分配战役野战油库油料输送力量战时油料保障必须面临一个实际问题

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  • Using individual hydraulic prop in thin coal seam face is better than the others in the aspect of support strength, premary supporting force, shrink amount and safety.

    煤层工作面中使用单体液压支柱,在支护强度、初撑、可缩量、安全保障操作人员安全上,优于其它单体支护材料。

    youdao

  • Using individual hydraulic prop in thin coal seam face is better than the others in the aspect of support strength, premary supporting force, shrink amount and safety.

    煤层工作面中使用单体液压支柱,在支护强度、初撑、可缩量、安全保障操作人员安全上,优于其它单体支护材料。

    youdao

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