| 单词 |
acoustic position reference system |
| 释义 |
acoustic position reference system acoustic position reference system[ə′küs·tik pə′zish·ən ¦ref·rəns ‚sis·təm] (engineering) An acoustic system used in offshore oil drilling to provide continuous information on ship position with respect to an ocean-floor acoustic beacon transmitting an ultrasonic signal to three hydrophones on the bottom of the drilling ship. |
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