“reference tone”的概念、定义、翻译、参考文献-科学参考

单词	reference tone
释义	reference tone [`ref·rǝns ´tōn] ^ENGINEERING Stable tone of known frequency continuously recorded on one track of multitrack signal recordings and intermittently recorded on signal track recordings by the collection equipment operators for subsequent use by the data analysts as a frequency reference.
随便看	cosmic cosmic abundance cosmic background radiation cosmic censorship hypothesis cosmic dust cosmic electrodynamics cosmic expansion cosmic light cosmic microwave background cosmic microwave radiation cosmic noise cosmic radiation cosmic radio waves cosmic rays cosmic-ray shower cosmic-ray telescope cosmic sediment cosmic string cosmic year Cosmocercidae Cosmocercoidea cosmochemistry cosmochlore cosmogony cosmoid scale

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