“acoustic position reference system”的概念、定义、翻译、参考文献-科学参考

单词	acoustic position reference system
释义	acoustic position reference system [ǝ`küs·tik pǝ`zish·ǝn ¦ref·rǝns ´sis·tǝm] ^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.
随便看	protanopia Proteaceae Proteales protease protected format protected location protected-logic module protected thermometer protection protection code protection key protectite protective action guide protective atmosphere protective clothing protective colloid protective coloration protective device protective finish protective fire protective grounding protective relay protective resistance protective survey protector

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