When sleam to biomass ratio (S/B) is smaller than 0.37, the H2 content rises with the increasing of the S/B, but the H2 content decreases slowly when it is larger than 0.37.是什么意思_When sleam to biomass ratio (S/B) is smaller than 0.37, the H2 content rises with the increasing of the S/B, but the H2 content decreases slowly when it is larger than 0.37.在线翻译_英语_读音_用法_例句