Secondly, by using a technology that is similar to the "fuel cell", people could increase the efficiency when biological energy transfers into secondary energy.
其二，利用类似现在的“燃料电池”技术，提高生物能转化成二次能源的转化效率。
Submerged biological aerated filter tank is a new sewage treatment device and possesses the advantages of small occupying land, high efficiency and low energy consumption.
淹没式曝气生物滤池具有占地小、效率高和能耗低等一系列优点。
Submerged biological aerated filter tank is a new sewage treatment device and possesses the advantages of small occupying land, high efficiency and low energy consumption.
淹没式曝气生物滤池具有占地小、效率高和能耗低等一系列优点。
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