acetonyl什么意思？

Water soluble hydroxypropyl � � cyclodextrin was converted to acetonyl hydroxypropyl � � cyclodextrin via selective oxidation.通过选择性氧化,将水溶性优良的羟丙基β环糊精转化为丙酮基羟丙基β环糊精....

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

岩石表面的突起部分a protrusion on the rock face四周青山突起, 又高又陡.All around it rose , high and steep, the green hills.山峰突起.Mountain peaks tower into the sky....

You need, firstly, a strong independent board of directors and secondly, an experienced and dedicated staff.你首先需要一个强大的独立董事会，其次需要一批富有经验并且爱岗敬业的员工。Firstly, they must make certain that their pension needs are adequately cate...

v.经受，承受( withstand的过去式和过去分词 )...

“感慨”的近义词/同义词：慨叹, 感叹, 叹息, 感喟, 感伤。...

dahlin的音标：dahlin的英式发音音标为：['deɪlɪn]dahlin的美式发音音标为：['deɪlɪn]...

laurate的音标：laurate的英式发音音标为：['lɔ:reɪt]laurate的美式发音音标为：['lɔreɪt]...

n.莱姆病（由扁虱叮咬而出现麻疹、发烧等症状的一种传染性疾病）...

tile的一般过去时为：tiled...

board的一般过去时为：boarded...

The early indications look encouraging.开初的迹象看起来令人鼓舞。The contra - indications listed for the pills meant that she could not take them.这种药丸所列的禁忌症表明,她不能服用.There are no indications that standard security arrangements were at...

lever的复数形式为：levers...

Amphimonadidae的音标：...

This woman wore seamed nylons and kept smoothing her skirt.这个女士穿着长筒尼龙缝袜，不停地把裙子弄平整。Baker was smoothing out differences with European allies.贝克正在努力消除同欧洲盟国之间的分歧。She is good at smoothing these little problems out.她善于妥善解决这一类小...

我们知道不断增加的引力会加速细胞的分裂。Increasing gravity is known to speed up the multiplication of cells.增加的投资将有助于经济的稳定。The increased investment will help stabilise the economy.额外的责任与小幅增加的薪金之间的不相称the disproportion between the extra respo...

n.分歧，意见不合( disagreement的名词复数 )...