英语词汇“filter bed”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	filter bed
释义	filter bed noun : a bed of sand, gravel, or similar matter used for filtering large quantities of water or sewage
随便看	hdwd hdwe He HE HE He he he head head headache headache headache plant headache post headache weed head-aching headachy head and front head and shoulders head-and-tail-light head-and-tail-light fish headband headbanger head betony head blight

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