Amphoteric monomer is prepared with acrylic acid , dimethylamine and chloroethanol by Mannich reaction.以丙烯酸、二甲胺、环氧氯丙烷为原料,通过曼尼希反应制得两性离子单体.Biological activities of amphoteric surfactants to higher or lower organisms were i...
Reactions in liquid HF are known that illustrate also amphoteric behavior, solvolysis, or complex formation.已知在液态HF中,也能说明两性行为溶剂分解或络合物形成作用的反应.Biological activities of amphoteric surfactants to higher or lower organisms we...
就性情上来说,索马利猫是很聪明活泼的, 也会展现出戒意与好奇心.Temperament: They are smart and lively, but also alert and curious.AndrewMwangura解释说,索马利人的海盗行为在这个无法可管的国度里是种合理的经济行为.Andrew Mwangura explained that Somali piracy was a rational economic acti...
So much enforced reasoning had hold on Wilson's rage, he was calmer.如此有力的说理,对平息威尔逊的怒气产生了效果, 他稍平静了一些.Rachel looked calmer and more rational now.雷切尔现在看上去更加平静、更加理智了。Wu Sun - fu was calmer now.吴荪甫的一颗心也定下来了.Indeed, the Z...