“slow sand filter”的概念、定义、翻译、参考文献-科学参考

单词	slow sand filter
释义	slow sand filter [`slō `sand ´fil·tǝr] ^{CIVIL ENGINEERING} A bed of fine sand 20-48 inches (151-122 centimeters) deep through which water, being made suitable for human consumption and other purposes, is passed at a fairly low rate, 2,500,000 to 10,000,000 gallons per acre (23,000 to 94,000 cubic meters per hectare); an underdrain system of graded gravel and perforated pipes carries the water from the filters to the point of discharge.
随便看	conduction pump conductive coating conductive coupling conductive elastomer conductive equilibrium conductive gasket conductive interference conductive paste conductive rubber conductive silver paste conductivity conductivity bridge conductivity cell conductivity current conductivity ellipsoid conductivity modulation conductivity modulation transistor conductivity tensor conductivity theory conductometer conductometric titration conductor conductor pipe conductor skin effect conduit

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