loose coal 中文意思是什麼
loose coal
解釋
疏鬆煤-
Research on the mining on the coal face without sand control seam under the poor water - content loose aquiclude
弱鬆散含水層下無防砂保護層開采研究 -
Coal mine equipment. troughed belt conveyors for loose bulk materials. cleaning scrapers and lateral bibs used for underground and for above ground. specifications. characteristics. test methods. acceptance testing
採煤設備.鬆散集料用傳輸槽帶.地面和地下清除鏟運機和側閥栓.規范.特性.試驗方法.驗收試驗 -
If increasing drawing interval, the movement and flow range of top coal will enlarge, and the velocity gradient on flow cross - section will diminish, so that it is good for controlling the flow rate of thin sand among loose top coal
研究表明，加大放煤步距，頂煤運移流動的范圍變大，流動斷面內速度梯度變小，有利於控制細砂的下竄速度。 -
Scraper chain is suitable for transmission equipment for loose material such as cement, flour, corn, sand, stone and coal etc, of which the loose material is powdery, grain and polt
埋刮板鏈適用於粉末狀、顆粒狀及小塊狀的水泥、麵粉、穀物、砂石和煤炭等散狀物料的運輸設備！ -
Coal mine equipment. troughed belt conveyors for loose bulk materials. pulley covers used underground and for above ground. specifications. characteristics. test methods. acceptance testing
採煤設備.鬆散集料用傳輸槽帶.地面上和地下滑輪蓋.規范.特性.試驗方法.驗收試驗 -
Based on the geological and mining conditions and occurrence characteristics of loose aquifer of xinglongzhuang colliery, water bursting cause of 4303 full - mechanized caving mining face under loose aquifer was analyzed, the prevention measures of the 3rd aquifer and reasonable dimension of coal pillar for sand proof were discussed in this paper
摘要根據興隆莊煤礦地質采礦條件，結合鬆散含水層賦存特徵，分析了四采區4303綜放工作面第四系鬆散含水層出水的原因，探討了防治三含水的技術途徑和留設防砂煤柱的合理尺寸。 -
In order to optimize the parameters of running top coal under different coal and gangue fragmental size, on the basis of measuring and analyzing the distribution character of top - coal fragmental size, running top coal was studied for the coal seam with dead - unconsolidated thin sandstone roof by loose medium model experiment
摘要為了優化不同煤矸塊度條件下的放煤工藝參數，在實測分析頂煤破斷塊度分佈特點的基礎上，採用散體模型試驗的方法對煤層頂板為極鬆散細砂巖條件下的放煤工藝進行了研究。 -
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。 -
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 -
Research on coal mining under competent loose aquifer and properties of aqniclude in yushen mining area
榆神礦區強鬆散含水層下採煤隔水巖組特性的研究 -
Based on its special geological and mining conditions of qidong colliery, the cause of water bursting of loose aquifer in the 4th lineage in 7 ( subscript 1 ) 14 full - mechanized mining face of the first mining area was analyzed and technology method of preventing the 4th loose aquifer was discussed according to the occurrence characteristics of loose aquifer and damage characteristics of overburden rock in 7 ( subscript 1 ) coal seam
摘要根據祁東煤礦特殊的地質采礦條件，結合鬆散含水層賦存特徵及7 （下標1 ）煤層覆巖破壞特點，分析了一采區7 （下標1 ） 14綜采工作面第四系鬆散含水層出水的原因，探討了防治四含水的技術途徑。 -
Rock bolting support technology for loose coal seam
鬆散煤層錨桿支護技術 -
Coal mine equipment. troughed belt conveyors for loose bulk materials. carrying idlers. specifications. characteristics. acceptance testing
採煤設備.散裝產品槽形傳送帶輸送機運載捲筒.規范.特性.驗收檢驗 -
The stockpile of opencast coal mine is a kind of huge artificial loose dump, which has the problems of serious soil erosion and instability
大型露天煤礦排土場是一種巨型人工鬆散堆積體，存在著嚴重的水土流失和排土場穩定問題。
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