Meanwhile, acetone was a polymerization inhibitor in preventing the self - polymerization ofp - methoxybenzyl chloride, and 11. 同时探索了甲氧基苄氯自聚的阻聚剂, 初选的阻聚剂丙酮可使甲氧 基苄 氯粗品的收率提高11.
I was dismayed at the news.我听到这个消息,很沮丧。The thought that she might fail the history test dismayed her.想到历史可能考不及格时, 她很沮丧。The committee was dismayed by what it had been told...委员会对所告知的一切很是惊愕。He was dismayed to find that his...
...broad straw hats decorated with ostrich plumes.装饰着鸵鸟羽毛的宽边草帽And, curled about the brim of this confection was the perkiest of green ostrich plumes.而且, 这件绝妙精制品的帽檐周围还装饰着洋洋得意似的驼鸟毛呢.Ostriches are descendants of dinosaurs, ...
The disadvantage is that it is not universally available...缺点在于它并不是随处都可获得。A wide range of colours and patterns are available.各种颜色和样式都有。They are available in polished brass, antique brass or silver-plate.它们有哑铜的，古铜的和镀银的。Or...
泪水是由泪腺分泌的.Tears are secreted by the tear glands.泪腺和唾液腺淋巴细胞增生,可引起两侧腺体无痛性肿大.Proliferation of lymphocytes in lacrimal and salivary glands may cause bilateral painless enlargement.目的利用普罗卡因封闭泪腺治疗泪液分泌过多症.Objective To remedy la...