窄礦柱 的英文怎麼說

中文拼音 [zhǎikuàngzhù]
窄礦柱 英文
rance
  • : 形容詞1. (橫的距離小) narrow 2. (心胸不開朗; 氣量小) petty; narrow 3. (不寬裕) hard up; badly off; short of
  • : 名詞1. (礦床) ore [mineral] deposit 2. (礦石) ore 3. (開采礦物的場所) mine
  1. The practice of bolt support technology by remaining narrow and small coal column for extraction roadway in longgu coal mine

    龍固煤小煤回採巷道錨桿支護技術的實踐
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