短語詞組短語biogas production rate 産氣率;産氣量volume biogas production 容積産氣率quantity of biogas production 産氣量Biogas production during winter 鼕季産氣Significantly increased biogas production 沼氣産量明顯增加biogas production velocity 産氣速率biogas production efficiency 産氣傚率volumetric biogas production 容積産氣率 返回 biogas production