“dust counter”的概念、定义、翻译、参考文献-科学参考

单词	dust counter
释义	dust counter [`dǝst ´kau̇nt·ǝr] ^ENGINEERING A photoelectric apparatus which measures the size and number of dust particles per unit volume of air. Also known as Kern counter.
随便看	thread plug gage thread protector thread rating thread ring gage thread waste threat collision avoidance system three-address code three-address instruction three-alpha process three-arm protractor three-body problem three-day fever three-decibel coupler three-decision problem three-dimensional three-dimensional braiding three-dimensional display system three-dimensional flow three-eighths rule three-index symbols three-input adder three-input subtracter three-jaw chuck three-j number three-junction transistor

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