“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...

narrated的音标：...

rival的现在完成时为：rivalled...

“行骗”的拼音为：xíng piàn...

blucher的音标：blucher的英式发音音标为：[b'lu:tʃə]blucher的美式发音音标为：[b'lutʃə]...

wager的现在进行时为：wagering...

He drags his leg, and he can hardly lift his arm.他拖着腿，几乎举不起他的胳膊。He took last drags at his cigarette and stood up.他抽完最后几口烟,站了起来.She always drags behind.她总是落在后头....

n.左撇子，左翼分子...

previous的音标：previous的英式发音音标为：['pri:viəs]previous的美式发音音标为：['priviəs]...

Barium is found in some oilfield brines in concentrations greater than 100 mg / litre.在有些油田卤水中,钡的浓度大于100毫克/升.At lower concentrations they may even be stimulants of cell division.在浓度较低时,它们甚至能促进细胞分裂.Methods Three different...

Elaphomycetaceae的音标：...

“气力”的英语可以翻译为：effort，energy，physical strength，pep，strength ...

桂马维林...

“命脉”的近义词/同义词：命根子。...

diacetylamino的音标：diacetylamino的英式发音音标为：[d'ɪeɪsɪtɪləmɪnəʊ]diacetylamino的美式发音音标为：[d'ɪeɪsɪtɪləmɪnoʊ]...

He became an RAF navigator during the war.他在战争期间成为皇家空军的领航员。He entered RAF service in the closing stages of the war...战争快要结束的时候，他加入了英国皇家空军。For its part , RAF says any scrapped jets must come from the navy's Harrier s...