“酮化”的英语

传统的缩酮化、酯化反应工业上多采用浓硫酸作催化剂.Traditional ketalization and esterification reactions are usually catalyzed by concentrated acid in industry.对甲苯磺酸铜是乙二醇与羰基化合物缩醛(酮)化反应的高效催化剂.Acetalization of glycol with carbonyl compounds was car...

beachcomber的音标：beachcomber的英式发音音标为：['bi:tʃkəʊmə(r)]beachcomber的美式发音音标为：['bitʃkoʊmə(r)]...

n.太空( void的名词复数 )，宇宙空间，空隙，空虚感v.使无效( void的第三人称单数 )，宣布…作废，取消，排泄...

n.奔驰，追赶...

Britain's future as a leading industrial nation depends on investment.作为一个主要工业国英国的未来要倚赖投资。These abandoned children have now got a future...这些被抛弃的孩子现在有了希望。Any true lover casting a pin into the fountain and gazing int...

isthmopathy的音标：isthmopathy的英式发音音标为：['ɪsθməpəθɪ]isthmopathy的美式发音音标为：['ɪsθməpəθɪ]...

Curving ramps connect across pool to sculptural eye and box.旋转的坡道连接水池和眼睛形状的大楼.Ramps should be provided for wheelchair users.应该给轮椅使用者提供坡道。With the on - ramps, it all totals two and a half miles.包括上面的斜坡总长共有2英里半.He has the ...

核黄素四丁酯...

“广泛”的近义词/同义词：普遍, 遍及, 广博, 广大, 渊博, 平凡, 平常, 通常, 通俗, 寻常, 普通, 普及。...

“近路”的拼音为：jìn lù...

n.政府，政体，治理的形式，管辖，治理...

petulant的音标：petulant的英式发音音标为：['petjulənt]petulant的美式发音音标为：['petʃənt]...

He crouched as near to the door as he could.他蹲得距门尽可能近.A cluster of vultures crouched on the carcass of a dead buffalo.一群秃鹫蹲伏在一具野牛的尸体上。He crouched behind a low hedgerow.他蹲在一排低矮的树篱后面。...

hamlet的音标：hamlet的英式发音音标为：['hæmlət]hamlet的美式发音音标为：['hæmlɪt]...

“公诉”的反义词：自诉, 辩护, 指控。...

宏观模式...