alkyl是什么意思

Nonionics include polyoxyethylene condensates, sucrose esters and alkyl amine oxides.非离子型表面活性剂有聚氧乙烯缩合物糖酯和烷基胺氧化物.The general answer to this problem is to avoid alkyl halides.解决这一问题的一般办法是避免使用烷基卤.Nonionic surface - active a...

alkyl的音标：alkyl的英式发音音标为：['ælkɪl]alkyl的美式发音音标为：['ælkɪl]...

The synthetic method, main properties and application of alkyl indican has been introduced.本文介绍了烷基糖苷的合成方法, 主要性能和用途.This preparation uses dialkyl imidazole salt, alkyl pyridine salt or caprolactam and fatty acid as reacta...

There are B&Bs all over the islands.提供住宿和早餐的家庭旅馆遍布全岛。Does your electric blanket conform to BS 3456?你们的电热毯达到英国的3456标准了吗？That guy's full of BS.那家伙满嘴喷粪。...

According to the characteristics of element abiochemistry, the author concludes some methods of teaching on it.针对元素无机化学教学内容的特点, 介绍了在组织元素无机化学的教学过程中的几点做法和体会....

Streaks of faint light were rising, heralding a new day.几道淡淡的晨曦正在升起, 预示新的一天的来临.Viruses are often classified into broad categories as mosaics , yellows, mottles, and streaks.病毒病常分为几大类,即花叶病, 黄化病, 斑驳或条斑.The flames begin as ...

Everyone extols his noble qualities.人人称颂他的崇高品德.Plenty of money often fetches out a person's worst qualities.面对大量的金钱往往会使人暴露出最坏的品质.The essential qualities of such a system are reliability and accessibility;这种方法的基本特点是可...

Some foetal malformations cannot be diagnosed until late in pregnancy.有些胎儿的畸形部位得等到妊娠后期才能诊断出来。Methods Spinal bifida and tethered cord syndrome are congenital malformations.方法　脊柱裂与脊髓栓系综合征是一种先天性疾病.Purpose : To analyse CT ma...

adj.有头脑的，有思想的...

n.装有毛屑的床...

Avila的音标：...

n.白血病样的...

lasts的音标：...

这钻机有变速控制。The drill has variable speed control.该装置本身就在车子正下方，几乎与变速杆处于同一直线上。The device itself was right under the vehicle, almost in line with the gear lever.你拐角时要换挡变速.You have to shift as you drive around the corner....

“巨大”的反义词：微小, 细小, 渺小, 眇小。...

Donaldson was a petty crook with a string of previous offences.唐纳森有一系列小的犯罪前科，但没犯过大事。Mr. Donaldson is tall, white - haired, and pleasant.董纳森先生身材高大, 白头发, 和颜悦色的.I don't think George would like any of this, Mr. Donaldso...

Micrixalus的音标：...

He has heavy outgoings on his new house.他的新房子费用很高.She suggests you first assess your income and outgoings.她建议你先估算一下自己的收入和开销。...monthly outgoings.每月的固定开支Outgoings and revenues balanced out.收支相抵。Write down your incomings a...