delta iron 中文意思是什麼

delta iron 解釋
δ鐵
  • delta : n. 1. 希臘語字母表第四字母〈Δ，δ〉。2. （河流的）三角洲；三角形物。3. 〈D-〉 通訊中用以代替 d 的詞。
  • iron : n 1 鐵。2 鐵器，鐵製品；小刀，尖刀；熨斗，烙鐵。3 〈俚語〉（牛羊身上打的）烙印。4 腳鐐，手銬；馬...
  1. As it was difficult to extract the ore in the delta zone at ore body of jingtieshan iron mine, a rational extraction technology by ore cutting was applied so as to control the rock misplacement to ensure the extracted ore grade. as a result, good technical and economical benefits were achieved

    闡述了鏡鐵山鐵礦礦體下盤三角礦帶礦量回收難點，採用合理的切巖回採技術，控制巖石混入量，保證出礦品位，達到較好的回收技術經濟指標。
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