“contact bed”的概念、定义、翻译、参考文献-科学参考

单词	contact bed
释义	contact bed [`kän´takt ´bed] ^{CIVIL ENGINEERING} A bed of coarse material such as coke, used to purify sewage.
随便看	kaki kakidrosis kakorrhaphiophobia kala azar kal Baisakhi kale kaleidoscope kalema kalfax kaliborite kalicinite kalinite kaliophilite kalium kalkowskite kallidin I kallitype Kalman filter Kalotermitidae kalsilite kalsomine kalunite Kaluza theory kamacite kame

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