| 释义 |
Rotary Table
rotary table[′rōd·ə·rē ′tā·bəl] (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. Rotary Table in drilling rigs, the part that rotates the drill column in the borehole. |