词汇	复土
释义	复土 fù tǔearth backing復土
随便看	trickle-up effect trickle-up recovery trickle-up theory trickle-up trend trickle-up trends trickle valve trickling trickling biofilter trickling charge trickling column trickling component parts trickling condenser trickling cooler trickling cooling plant trickling down trickling down effect trickling-down effect Trickling-down effect and Polarized effect trickling film trickling filter trickling filter bed trickling filter distillate trickling filter filling Trickling filter fly trickling filter high rate