Helen was diffident and reserved.海伦比较害羞内向。He has a politely diffident manner.他的态度是客气中带有羞怯.In the diffident manner was nothing of the art of the courtesan.她羞怯的举止迥然不同于妓女的惺惺作态....
The betaine will collapse to the alkene only when these two functions are eclipsed.只有当这两个基团移至重迭位置时碘盐才能裂解为烯烃.Ingredients: Purified water, Cucumber Extract, Hyaluronic Acid Myristic Acid, Cocoamidopropyl Betaine.主要成份: 维他命E...
The most common bacteria isolated from the conjunctiva are small numbers of coagulase - negative staphylococcus and diphtheroids.从结膜最常分离的细菌包括少量的凝固酶阴性葡萄球菌和类白喉菌属.Results 60 % cancer karyon, cytoplasm display positive signa...
Some manufacturers used a little fumed litharge and basic lead sulfate here also.有些制造厂也用少量细质的一氧化铅和碱式硫酸铝.Litharge itself has been used as a stabilizer.一氧化铅本身就可作稳定剂使用.Red Lead Red lead is made by calcining litharge in a mu...