... 通风坑（矿） air heading 水平仪 dipstick; gauge, level; horizon i trument; horizon instrument; indicators (water level ); level gage; level indicator; level instrument, gradienter; level meter; level vial; levelgage; level-gauge; levelmeter; leveller; plumb level; spirit level; spiritlevel; water level gauge 水平,水平仪,位准 level ...
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