heat motion的用法和樣例：
例句
- The vibrations which constitute a wave in a gas superposed on the random thermal motion.
氣體中形成波的振動(dòng)疊加在這種無(wú)規則熱運動(dòng)上。 - Moreover, since the atoms are in random thermal motion the frequency spectrum will be altered by the Doppler effect.
而且，由于原子是在作無(wú)規則熱運動(dòng)，多普勒效應也會(huì )使頻譜發(fā)生改變。
