coal extract 中文意思是什麼

coal extract 解釋
煤餾出物
  • 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 ...
  • extract : vt 1 （用力）拔出，抽出。2 分離出，提取，蒸餾出，榨出。3 摘出（要點），引用。4 推斷出。5 【數學】...
  1. Determination of yield of benzene - soluble extract in brown coal

    褐煤的苯萃取物產率測定方法
  2. Gc ms analysis of datong raw and oxidized coal extract using methanol tetrahydrofuran mixed solvent

    含水四氫呋喃萃取精餾塔的動態模擬
  3. The software realize the exceptional messages extract of gas concentration data, and display abnormal symptom of gas concentration change trend and scope by real - time graphics before gas outburst, can reflect the forepart signal of the gas outburst, give a significant guide for reduce the loss and ensure safe production of coal mine

    利用軟體實現了葉瓦斯濃度數據中異常信息的提取，並通過圖形形式實時顯示突出前夕瓦斯濃度變化趨勢、幅度等異常徵兆，可直觀、明了地反映突出早期信號，對防治突出，減少事故，確保煤礦安全生產有重要的指導意義。
  4. Miners had to dig deeper to extract coal, which became uneconomical

    為了提高產量，礦工不得不向更深處挖掘，這變得越來越不合算。
  5. The state shall encourage coal mining enterprises to carry out second mining or extract residual coal at the margins of mining areas and very thin coal seams

    國家鼓勵煤礦企業進行復采或者開采邊角殘煤和極薄煤。
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