单词 | rotary table |
释义 | rotary table [`rōd·ǝ·rē `tā·bǝl] MECHANICAL ENGINEERING A milling machine attachment consisting of a round table with T-shaped slots and rotated by means of a handwheel actuating a worm and worm gear. PETROLEUM ENGINEERING A circular unit on the floor of a derrick which rotates the drill pipe and bit. |
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