以脱乙酰壳聚糖为载体,戊二醛为交联剂制备固定化碱性蛋白酶.Alkaline protease has been immobilized on chitosan with glutaraldehyde as crosslinking agent.目的研究戊二醛的新合成方法.Aim To study the synthetic method for the glutaric dialdehyde.用途: 用于生产戊二醛及高分子材料, 涂料,...
In school, he was not one of the achievers.上学时他不属于拔尖的那类。Many women achievers appear to pose a threat to their male colleagues.许多事业有成的女性似乎对她们的男同事构成了一种威胁。High achievers will receive cash bonuses.业绩出众的人会获得现金奖励。...
旅行的终点是马拉喀什古城。The journey ends in the ancient city of Marrakesh.我们多年来都开着一辆生锈的旧货车四处旅行。We spent years travelling around in a rusty old van.她经常旅行，穿梭于她在世界各地的多处住所。She travels con-stantly, moving among her several residences ar...
挤压 式 发动机对推进剂中溶解的气体特别敏感.Pressure - fed engines are particularly susceptible to dissolved gas in the propellants.石墨甚至其线性类似物, 聚 ( 名聚-苯撑 ) 都是极难溶解的.Graphite and even its linear counterpart, poly ( p - phenylene ) are too inso...