用nightsoil造句子，“nightsoil”造句

nightsoil work administrating system

administrating system or work of nightsoil and sewage from boats and ships

nightsoil and sewage from boats and ships working system

Feasibility test of HBH-Ⅱ compound microorganism on the reduction of septic tank nightsoil sludge

one-stage activated sludge process of nightsoil