“sound signal”的概念、定义、翻译、参考文献-科学参考

单词	sound signal
释义	sound signal [`sau̇nd ´sig·nǝl] ^{COMMUNICATIONS} Any sound produced to convey intelligence, as a fog signal.
随便看	pterygoid bone pterygopalatine fossa pterygoquadrate Ptiliidae Ptilodactylidae Ptilodontoidea ptilolite Ptinidae PTM Ptolemaic system Ptolemy's theorem ptosis PTRM ptyalase ptyalin Ptychodactiaria Ptychomniaceae ptychotis oil Ptyctodontida ptygma ptygmatic fold p-type conductivity p-type crystal rectifier p+-type semiconductor p-type semiconductor

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