ketal的意思？

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...

ketal的音标：ketal的英式发音音标为：['ki:tæl]ketal的美式发音音标为：['kitæl]...

clupeine的音标：clupeine的英式发音音标为：['klu:pi:n]clupeine的美式发音音标为：['klupin]...

官员们对于会谈情况保持缄默.The officials maintained a wall of silence around the talks.我们不应对这件可耻的事保持缄默.We should not pass over this disgraceful affair in silence.侦探们犯了难，半岛上各个群体抱成一团，达成了保持缄默的密约。Detectives have run into a conspiracy of ...

n.拟遗传型，拟基因型...

“节拍器”的英语可以翻译为：metronome ...

dribbles的音标：...

dashes的音标：...

潜水员下潜到超过危险线的深水中去了.The diver went into the deep water beyond the danger limit.长度是线的属性.Length is predicable of a line.点是线的开始.A point is inceptive of a line....

“织锦”的拼音为：zhī jǐn...

n.农业生态学...

“计划书”的英语可以翻译为：prospectus...

介绍了平齿根齿侧配合英制渐开线花键计算、测量的基本公式及方法.This paper introduces calculation and measurement of BRITISH Standard Involute splines.拖到绘图页上. 拖动黄色菱形可调整中心圆 、 齿根圆和外径的大小.Drag onto the page. Drag yellow diamonds to resize hub circle, root c...

acetonyl的音标：acetonyl的英式发音音标为：['æsɪtənɪl]acetonyl的美式发音音标为：['æsɪtənɪl]...

foresail的音标：foresail的英式发音音标为：['fɔ:seɪl]foresail的美式发音音标为：['fɔrseɪl]...

memorised的音标：memorised的英式发音音标为：['meməraiz]memorised的美式发音音标为：[]...

“木纹状”的拼音为：mù wén zhuàng...