“acoustic branch”的概念、定义、翻译、参考文献-科学参考

单词	acoustic branch
释义	acoustic branch [ǝ`küs·tik ´branch] ^{SOLID-STATE PHYSICS} One of the parts of the dispersion relation, frequency as a function of wave number, for crystal lattice vibrations, representing vibration at low (acoustic) frequencies.
随便看	time-division multiplier time-division sound time-division switching system time-domain reflectometer timed signal service time factor time fire time formula time front time fuse time gate time-height section time hopping time-interval measurement time-interval radiosonde time-invariant system time lag time-lapse photography timelike path timelike surface timelike vector time line time-mark generator time measurement time meridian

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