它的作用主要有对污染物的吸收、吸附和富集，输氧，加强和维持水利传输。
It has the functions to assimilate, absorb and collect pollutant, to give a shot of oxygen and to strengthen and maintain the transmission of waterpower.
人工湿地氮转化途径主要包括微生物的硝化反硝化作用、植物的吸收和湿地基质的吸附等。
The major nitrogen transformation pathways in constructed wetlands include nitrification and denitrification of microbe, plant uptake and adsorption by substrate.
煤中存在渗流孔隙、凝聚—吸附孔隙、吸附孔隙和吸收孔隙四种固气作用孔隙类型；
It was considered that there are four pore types of solid-gas interaction in coal, i. e. seepage flow pores, coagulation-adsorption pores, adsorption pores and absorption pores ;
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