The invention discloses a small particle size narrow distribution penicillin acylation enzyme fixedcarrier preparation method.
本发明公开了一种小粒径窄分布青霉素酰化酶固定化载体的制备方法。
2
The invention relates to a strengthened polyethylene imine fixedcarrier composite membrane for separating acid gas and a preparation method thereof.
本发明涉及一种用于分离酸性气体的强化聚乙烯胺固定载体复合膜及其制备方法。
3
This essay tries to establish a definition for small ads and identify their most important features as distinguished from other types of ads, namely, small ads have no fixedcarrier.