back of ore 中文意思是什麼

back of ore 解釋
礦床頂
  • back : n 1 背，背部；背脊；背面，反面；背後，後部，後面，裏面。2 （指）甲；（刀）背；（手）背；（書）背...
  • of : OF ＝Old French 古法語。
  • ore : n. 礦；礦砂，礦石；〈詩〉金屬（尤指貴金屬）。 be in ore 含有礦物。n. （pl. ore）1. 歐爾〈瑞典貨幣單位，等於1/100克朗〉。2. 歐爾硬幣。
  1. Easily distracted by futile “ get rich quick ” schemes, they actually sent shiploads of mica and yellow ore back to england in 1607 and 1608

    由於「迅速發財」的不切實際的想法的驅使，他們在1607和1608年竟然把成船的雲母和黃鐵礦石運往英國。
  2. With the mining of no. 1 ore body which is solwly inclined, large and thick at the west flank of xinqiao pyrite mine as the example, analytic comparision is made between flat - back cut and fill stoping and sublevel open stoping with one - time delayed filling. the suggestion on the optimization of the mining and the discussion on appropraite mining method and the technical parameters of mining technology for slowly inclined large and thick ore body are also made

    以新橋硫鐵礦礦體西翼緩傾斜厚大礦體的開采為實例，對生產中應用的水平分層充填采礦法和分段空場嗣後一次充填采礦法進行分析比較，提出采礦方法的優化建議，探討緩傾斜厚大礦體合適的采礦方法和采礦工藝技術參數。
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