搜尋:coal chute

符合的藏品

卷名:礦業部訓練人員報告Trainings Reports, Mining-Foreign Economi(003-020600-2069)

卷名:礦業部訓練人員報告Trainin...

_out Underground Working System─Mine No.7 Midvale Coal Co.、Sketch Showing Breast and Pillar Chute.....more

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輸煤機試運轉及落煤點調整之探討

皮帶機 滑輪 惰輪 落料槽 耐衝擊惰輪 輸煤機 梭動皮帶機 Conveyor Pully Idler Chute Impact idler Coal conveyor Shuttle.....more

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