The suitable organic imine reactants have a variety of compositions and structures.合适的有机亚胺反应剂具有多种组成和结构.The alternative use of buffered silica gel resulted in modest hydrolysis ( ~5 - 10 % ) of the imine.选用温和的水解导致缓冲硅胶 ( ~...
I walked up one road , down another , expecting to stumble on something recognizable.我东投西奔, 指望撞见认得的东西.Should my feet sometimes stumble on the way. stay with me.我的双腿有时会在途中绊倒, 所以请陪伴我.A horse may stumble on four legs.马有四条腿,...
the registration of letters and parcels信件和包裹的挂号She was burdened with a large quantity of parcels.她吃力地捧着一大堆包裹.He spent two hours tying all the parcels with string.他花了两个小时用绳捆扎所有这些包裹....