It was observed by optical microscope that bacteria, filamentous microorganism, protozoan and metazoan were adhered on the surface of the sludge.
光学显微镜观察，污泥表面附着有各种球菌、杆菌、丝状菌以及原、后生动物。
It was observed by optical microscope that bacteria, filamentous microorganism, protozoan and metazoan were adhered on the surface of the sludge.
光学显微镜观察，污泥表面附着有各种球菌、杆菌、丝状菌以及原、后生动物。
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