“occasional fog signal”的概念、定义、翻译、参考文献-科学参考

单词	occasional fog signal
释义	occasional fog signal [ǝ`kāzh·ǝn·ǝl `fäg ´sig·nǝl] ^NAVIGATION A fog signal not sounded regularly in fog.
随便看	Sommerfeld-Watson transformation somnambulism somnificant sonar sonar array sonar attack plotter sonar beacon sonar boomer transducer sonar capsule sonar countermeasures sonar detector sonar dome sonar navigation sonar projector sonar receiver sonar resolver sonar self-noise sonar set sonar target sonar transducer sonar transmission sonar transmitter sonar window sondage sonde

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