acetophenone的音标？

Methods: α - Bromo - 4 - benzyloxy acetophenone is synthesized with 4 - hydroxy acetophenone and bromonium as materials and methanol as solvent.方法: 以甲醇为溶剂,以对羟基苯乙酮和溴为原料制备了α - 溴-4-苄氧苯基苯乙酮.Thus , this reduced temperature of...

n.乙酰苯，苯乙酮，苯基甲基甲酮...

Thus , this reduced temperature of reaction and increased the rate of acetophenone.降低反应温度,提高了苯乙酮的收率.Objective: A new approach to prepare α - bromo - 4 - benzyloxy acetophenone was introduced.目的: 报道一种合成α - 溴-4-苄氧苯基乙酮的新方法....

footlight的音标：footlight的英式发音音标为：['fʊtlaɪt]footlight的美式发音音标为：['fʊtlaɪt]...

sittings的音标：sittings的英式发音音标为：['sɪtɪŋz]sittings的美式发音音标为：['sɪtɪŋz]...

n.眼球，眼珠子vt.打量，盯住看vi.仔细打量，盯着...

startle的近义词有：alarm, frighten, startle, terrify, scare, intimidate,surprise, amaze, astonish, astound, startle, stun。下面这些动词均有"惊吓，惊恐"的含义：alarm ：着重指某人意识到危险而突然产生的惊恐。frighten ：普通用词，使用广泛，指产生突然、短暂的惊慌、恐怖感。startle ：强调突然使人惊骇或震惊。te...

I was at home on furlough.我正休假在家。Some soldiers went on furlough for two weeks.有些士兵休假两周.I have a furlough every three years.我每三年休假一次....

v.打断( interrupt的第三人称单数 )，暂停，中断，阻断...

They are regularly sent booklets about personal safety, but they barely read them as they have so much paperwork to deal with.他们经常会收到关于人身安全问题的宣传册，但因为大量文案工作缠身，他们几乎无暇阅读。...an effective method that will not overload staff w...

“袅袅”的拼音为：niǎo niǎo ...

cabining的音标：...

A ratchet mechanism transfers the thread from spool to bobbin.一种棘齿装置把线从线轴转到梭心上。On dictation equipment, a spool on which magnetic tape is wound.在口述记录设备上, 一种卷绕磁带的轴.a spool of cotton一轴棉线a spool of thread一轴线...

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“赐予”的英语可以翻译为：grant，bestow，favor，vouchsafe ...

Three new peerages were created in the new year's honour list.在新年荣誉册上出现了三个新的上院议员或贵族....

lately的最高级为：lateliest...

set afoot着手, 使...开始执行There's something afoot here, but I don't know what it is.这里有什么东西不对劲, 但我不知道到底是什么.be well afoot在顺利进行中be early afoot早在进行There are plans afoot to increase taxation.正在拟订增税方案。Plans are afoot to ...