Saponins have all sorts of physiological activity and become one of hotspots in natural product research. But its complex structure results in the difficulties in its separation.
皂苷具多种生理活性，为目前天然产物研究热点之一，但其结构复杂导致分离工作难度增大，因而也成为研究的难点之一。
Gas separation membranes are widely used in petroleum, natural gas, chemical, metallurgical and pharmaceutical industries as "green chemical product" in competition with traditional technology.
气体膜分离作为一种“绿色化学”在与传统技术竞争中，越来越广泛应用于石油、天然气、化工、冶炼、医药等领域。
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