ketal怎么读？

n.酮缩醇，缩酮...

Cyclopentanone ethylene ketal was synthesized with I _ 2 as catalyst.以单质碘为催化剂合成了环戊酮乙二缩酮.The effects of reactant mole ratio , catalyst dosage , microwave irradiationtimeyield of cyclohexanone glycol ketal were investigate...

每个托架只用了3颗螺钉固定在墙上。Each bracket is fixed to the wall with just three screws.把横梁用托架和螺丝固定。Fix the beam with the brackets and screws.托架松了.The bracket came loose....

heliotrine的音标：heliotrine的英式发音音标为：['helɪətri:n]heliotrine的美式发音音标为：['helɪrtrin]...

They put a table athwart the doorway.他们把桌子横放在门口。Everything goes athwart ( with me ) .事事不 如意.His tendency toward violence was athwart the philosophy of the peace movement.他倾向于用暴力,这可是跟和平运动的宗旨背道而驰的....

“毛序”的英语可以翻译为：chaetotary ...

n.内衣，衬衣，内衣裤...

“我现在不能回答你，”他闪避道。"I can't give you an answer now," he hedged.库蒂不但没暂避风头，而且较以往更加直言不讳。Far from lying low, Kuti became more outspoken than ever.避谈语言学问题。Keep the conversation off linguistic matters....

jewel的音标：jewel的英式发音音标为：['dʒu:əl]jewel的美式发音音标为：['dʒuəl]...

adj.无可挽救的，不可弥补...

adj.血细胞渗出的...

appellation的复数形式为：appellations...

adj.溃疡的，腐烂的，不怀好意的v.使溃疡( canker的过去式和过去分词 )，受到腐蚀，生黑腐病，溃烂...

fiddlers的音标：...

“杏树”的英语可以翻译为：apricot，apricot tree，almond ...

nominee的复数形式为：nominees...

n.理发师( hairdresser的名词复数 )...