hard rock mining 中文意思是什麼

hard rock mining 解釋
硬巖開采
  • hard : adj 1 硬的，堅固的 （opp soft）。2 （身體）結實的；（組織等）健全的。3 （問題、工作等）困難的，費...
  • rock : n 1 巖，巖石，磐石，巖壁；卵石；〈常 pl 〉〈美口〉石子兒；暗礁，巖礁。2 〈the R 〉直布羅陀 （Gibr...
  • mining : n 1 采礦，采礦業，礦業。2 敷設地雷[水雷]。adj 開礦的，采礦的。 a mining engineer 采礦工程師。 min...
  1. These are useful in hard rock mining where high brisance, high shattering effects, are desired.

    這種炸藥，對需要高威力、高破碎效應的堅硬巖石礦，是有用的。
  2. By analyzing the technical flow of pithead heap - leaching uranium deposits of hard - rock type, the authors analyze its 14 cost items such as ore mining fee and major materials fee etc., and set up a geological - economic evaluation model

    摘要通過對硬巖型鈾礦坑口堆浸法的工藝流程分析，總結出坑口堆浸成本由礦石開采費用、主要原材料費用等14項要素組成，並建立了地質經濟評價模型。
  3. Impact hammer mills are used in the mining sector and in the pit and quarry industry for primary and secondary crushing of different types of ore and medium - hard rock with a throughput capacity of 1. 500 t h

    振動錘碎機在采礦業採石業和土壤業領域里被用來對礦砂和中硬巖石進行粗碎和細碎。它的生產能力可達到1500t h 。
  4. Hard metal carbide inserts for mining and oil - field rock bits

    礦山油田鉆頭用硬質合金齒
  5. Investigations of the raw material in hard - coal - mining ; macropetrographic classification and topographic survey of hard - coal and host rock

    煤礦原料勘探.煤礦及圍巖宏觀巖相分類和測定
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