油污丝 stained yarn

污叉丝孔菌 Dichomitus squalens

活性污泥丝状膨胀 activated sludge filamentation bulking ; activated sludge filamentous

污白丝盖伞 Inocybe geophylla Kummer

丝状菌污泥膨胀 Filamentous sludge bulking

丝状菌污泥微膨胀 limited filamentous sludge bulking