“filter sand”的概念、定义、翻译、参考文献-科学参考

单词	filter sand
释义	filter sand [`fil·tǝr ´sand] ^MATERIALS Graded sand used for filtering suspended matter from a flowing liquid stream.
随便看	double-cut file double-cut planer double-cut saw double decomposition double density double-diffused transistor double diode double-diode limiter double distribution double-doped transistor double dot halftone double-doublet antenna double drift double drill column double-drum hoist double ebb double electron excitation double-ended ferry double-ended Q machine double-entry method double exposure double-exposure holographic interferometry double-face satin double fertilization double floor

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