broken coal 中文意思是什麼

broken coal 解釋
碎塊級無煙煤
  • broken : adj 1 破裂的，打碎了的，弄破了的；（腿、臂等）已骨折的。2 （地面等）起伏不平的；（天氣）忽陰忽晴...
  • coal : n 1 煤，煤塊，煤堆。2 〈pl 〉〈美國〉（一堆）燒紅的煤。3 〈常 pl 〉〈英國〉（幾塊）供燃燒的煤。4 ...
  1. The frozen coal destruction is the tension stress destroys, and establish the frozen coal cutting model in this foundation, obtains the cutting force, feeding force, tooth spacing according to the smallest energy principle. bring forward a rotary drilling mothod to unload the frozen coal, the broken ability is strong, without frozen depth limits, then obtains this machine working parameters, has combined this method with a grab and determined the plane of vehicle - carried rotary drilling movable coal - unloader

    凍煤破壞是拉應力破壞，在此基礎上建立了凍煤的切削模型，根據最小能量原理得到截割力，進給力和截齒間距的計算公式，分析得到截割力與切削厚度成正比，隨著前角的增大而減小;截齒最優截距與截齒尺寸有關且與切屑厚度成正比;進給力隨著截齒前角增大而增大的規律。
  2. The same observation might be made on the retailers of small-coal, not to mention broken glasses, or brick-dust.

    同樣的評語也適用於那些賣煤末的，更適用於賣碎玻璃和磚渣的小販。
  3. Experimental study on the characteristics of compaction of the saturated broken coal waste

    飽和煤矸石的壓實特性研究
  4. Supporting technology with meshing and bolting in high gas, inflammable, soft - broken coal seam

    高瓦斯易燃松軟破碎煤層錨網支護技術
  5. Analyses on and prevention of rope - broken accident of hydraulic support in fully mechanized coal mining face in the track inclined - tunnel conveyance

    軌道斜巷運輸綜采液壓支架斷繩事故分析與預防
  6. Analysis on the broken belt accident of the strong conveyor in zhuxianzhuang coal mine

    朱仙莊煤礦強力輸送機斷帶事故透析
  7. This paper introduces the characteristics of steel wire ropes used in the inclined - tunnel ' s lifting conveyance, analyzes on the main reasons of the rope - broken accident of hydraulic support in fully mechanized coal mining face, and advances some measures for preventing the accident

    介紹了斜巷提升運輸中鋼絲繩的特性，分析了綜采液壓支架斷繩事故的主要原因，提出了預防事故發生的措施。
  8. The coastal harbors, the keys in the coal transportation system, have been invested in last 15 years by center government. so that the bottle - neck of the coastal coal transportation system has been broken. the capacity of harbors and ships can meet the demand of coal transportation to the national economy development

    煤炭海運港口作為該運輸系統的一個重要環節， 「七五」 、 「八五」期間國家投入大量資金對其進行建設，目前沿海煤炭運輸的瓶頸現象已基本消失，港口吞吐能力、船舶運力基本可以滿足國家經濟建設對煤炭海上運輸的需求。
  9. With the rapidly development of minefield and the rapidly increase of coal output, the excavation scope and depth will extremely rise, the excavation work is under the overlying by the thin rock strata, and under the thick loose bed, the population in mine field will be more and more, the relevant basic industries will also develop rapidly. the mines will discharge more water from the underground, and the production and living will also consume more water. so the original water resource balance system in the minefield will be broken, the ecological environment formed by the nature will be destroyed in some degree

    隨著礦區迅速發展而煤炭產量的快速增長，既定在薄基巖厚鬆散層下的神東煤田開采范圍和深度勢必急劇增大，相應的人口也增加，與其相匹配的其它基礎工業一併迅猛發展，導致礦井外排水和生產生活用水直線猛增，這一系列生產和生活巨量用水必然會打破礦區原始的水資源平衡體系，不同程度的破壞自然形成的脆弱的生態環境。
  10. Bolt fixing and construction of loose amp; broken workings in thick coal

    鬆散軟煤體巷道錨桿施工方法
  11. This equipment fits for heating new sand with precoated sand heating method, main fuel is coal or broken hard coke

    本設備主要用於覆膜砂熱法生產對新砂的加熱，主要燃料為煤或碎焦碳。
  12. Study on support technology for very soft broken rock mine roadway in wannian coal mine

    萬年煤礦極松軟破碎巖體巷道支護技術研究
  13. Mine fire control in fully mechanized coal caving face in high gassy flammable soft broken seam

    高瓦斯易燃松軟破碎煤層綜放工作面火災的防治
  14. Application for penetration of strong hard stratum, coal ball stratum and broken stratum

    適用於中硬-堅硬地層的鉆進。
  15. The caving roadways support have to complete two tasks in the steep seam sub - level caving. the one is to maintain the caving roadway stability, the another is to help the top coal to be broken. based on summarizing and analyzing field test, a fuzzy comprehensive judgment model is established for selection on supports used in caving roadway by the fuzzy theory. the support pattern of caving roadway is optimized, which has fixed guiding significant in application and dissemination of the mining method. 2figs., 2tabs., 6refs

    急傾斜煤層放頂煤放煤巷道的支護不僅要維護巷道的穩定，還須有助於頂煤的破碎、放出.在總結和分析現場試驗的基礎上，運用模糊數學理論，建立了放煤巷道支護選型的綜合評判模型，對放煤巷道的支護方案進行了優選，對推廣急傾斜煤層放頂煤法有一定的指導意義.圖2 ，表2 ，參6
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