[化] 氯化铝烷基化法

[00:00.00]在线英语听力室( www.tingroom.com )友情制作 [00:03.61]2001 Passage1 [00:11.16]Specialisation can be seen as a response to the problem [00:14.87]of an increasing accumulation of scientific knowledge. [00:19.40]By splitting up the subject mat

发表于:2018-12-01 / 阅读(169) / 评论(0) 分类 历年考研英语阅读理解

In the first two ESL lessons (BEP 59 BEP 60) in this three-part series on persuasion, we saw how getting your audiences attention and demonstrating a clear need were essential to the persuasive process. We learned that in the indirect method of persu

发表于:2018-12-05 / 阅读(206) / 评论(0) 分类 商务英语演讲课

New Solar Cell Minimizes Environmental Risks in Manufacturing Process 新的太阳能电池减少生产中对环境的危害 Scientists in England report the development of a new solar cell that minimizes environmental risks in the manufacturing proc

发表于:2018-12-08 / 阅读(162) / 评论(0) 分类 VOA标准英语2014年(六月)

The aluminium smelter at Tiwai Point near Invercargill opened in 1971. It had a contract to buy cheap electricity, generated by hydro-electricity from Lake Manapouri which is not far away. Now in 2013, 13% of all electricity generated in New Zealand,

发表于:2018-12-31 / 阅读(167) / 评论(0) 分类 新西兰英语

South Korean officials are reacting carefully to the expected suspension of large U.S.-South Korea military exercises. An announcement could come this week to suspend the major joint military exercises, South Koreas Yonhap news agency reports. Those

发表于:2019-01-03 / 阅读(153) / 评论(0) 分类 2018年VOA慢速英语(六)月

DAVID GREENE, HOST: Families across the United States are fighting with the federal government over a deadly chemical. Dozens of people have died from inhaling methylene chloride. This is an ingredient in common paint removers. NPR's Rebecca Hersher

发表于:2019-01-17 / 阅读(161) / 评论(0) 分类 2018年NPR美国国家公共电台11月

Every winter some twenty million tons of salt are dumped on America's road.That sodium chloride melts the ice, so it prevents its formatin, helping to prevent accidents. But road salt has its downside. This is not very economical because salt is main

发表于:2019-01-20 / 阅读(219) / 评论(0) 分类 2016年Scientific American(一)月

A: I am looking for a pan. B: No problem. What size would you like? A: A big one would be nice. B: How about this one? It's our biggest16 in diameter. A: Oh, yes. I like that one. But it's too heavy. B: Okay, try this one. It's made of aluminum. A: O

发表于:2019-01-20 / 阅读(190) / 评论(0) 分类 购物英语对话

A: Can you help me find a pan? B: Are you looking for a small, medium, or large pan? A: I want a big pan. B: Does this one look big enough? A: Yes, it's the right size, but it weighs too much. B: Well, what do you think of the aluminum pan? A: It's l

发表于:2019-01-20 / 阅读(205) / 评论(0) 分类 购物英语对话

A: I'd like to purchase a pan. B: Is there any particular size that you want? A: Well, I cook a lot of big meals. B: What do you think of this one? It's a 16 pan. A: Yes, that's the right size, but it's so heavy. B: Well, look at our aluminum pan. It

发表于:2019-01-20 / 阅读(171) / 评论(0) 分类 购物英语对话

This week on Why Tell Me Why, we are finding out why the oceans are so salty. So the oceans are salty because the oceans have been around, lets say, for over five hundred million years. And over the course of time what we found out is that weve alway

发表于:2019-01-22 / 阅读(156) / 评论(0) 分类 自然百科2009年

戴维斯大使对六方会谈的看法 The purpose of the Six-Party process is to denuclearize the Korean Peninsula, which in effect means that North Korea needs to move forward to denuclearize, not go in the other direction, which is what theyve be

发表于:2019-02-01 / 阅读(126) / 评论(0) 分类 VOA常速英语2013年(九月)

Selfies could soon be even sharper, if claims about Apple's next iPhone are confirmed. 若关于下一代iPhone的推测属实,自拍体验或许会更加炫酷。 Experts analysed the recent test version of iOS 9 released by the firm - and founds

发表于:2019-02-02 / 阅读(134) / 评论(0) 分类 阅读空间

Two fresh attacks by short sellers on Hong Kong-listed stocks are testing the citys efforts to limit companies ability to halt their shares from trading without answering allegations. 卖空者对香港上市股票发起的两起最新袭击,正在考

发表于:2019-02-03 / 阅读(114) / 评论(0) 分类 英语新闻

Tony: Who did you invite over for dinner Saturday? Carmela: I invited Keith, Sung, Stephanie, and Luis. Tony: You didnt! Carmela: I did. Why? Tony: Youre going to have a hard time cooking for them. Keith is a vegan and only eats food thats organic. S

发表于:2019-02-04 / 阅读(148) / 评论(0) 分类 地道美语播客

1. The search continues for 20-year-old Lauren Spierer. Police have few leads but suspect foul play in the disappearance of the Indiana University sophomore who has been missing for five days. 2. Moammar Gadhafi stood defiant in the face of the heavi

发表于:2019-02-11 / 阅读(211) / 评论(0) 分类 美联社新闻一分钟2011(六月)

And是一个常用的并列连词。其一般的用法和译法,已有不少文章论及。本文仅就and的一些特殊用法作一简单介绍。 一、And前后的两部分表示同时发生的动作,或同时存在的属性、特征等可译为

发表于:2019-02-13 / 阅读(161) / 评论(0) 分类 英文语法词汇

Current-account imbalances are not always a cause for concern. 经常账户失衡并不总是一件令人担忧的事。 As a matter of arithmetic, they measure the gap between domestic savings and investment. 基于数理逻辑,他们对国内储蓄

发表于:2019-02-17 / 阅读(133) / 评论(0) 分类 经济学人财经系列

In the small village of Lasanayah, Mamadou Kalissa looks out over his ancestral home. 在Lasanayah的一个小村庄里,马马杜卡利萨朝着自己的老家看去。 Last year it was farmland but now bauxite mining has turned it into a Martian l

发表于:2019-02-24 / 阅读(173) / 评论(0) 分类 经济学人商业系列

First off, I'll mention that at the bottom of the sea there exist veins of zinc, iron, silver, and gold whose mining would quite certainly be feasible. 首先,我对您说,海底有锌、铁、银、金等矿藏,开发并不是不可能的事。

发表于:2019-02-25 / 阅读(255) / 评论(0) 分类 《海底两万里》中英双语有声读物
学英语单词
a six
a-de
administrative enforcement
advisory council on minority business enterprise
aleuritic clay
appointments
armure cheviot
backwater
ballast distributing and trimming
battelling
boogieboard
bright steel bars
calc-alkalic series
cannon pinion
chapak gozar
conical lens
convolvulinic acid
Ctenizidae
cupric nucleinate
Desai
dictyuchus monosporus
Divalvon-D
divergent fibrous
double sweep tinning unit
Durrell, Lawrence (George)
dust ruffle
engineered safety features
finger lever
fitted for burning high viscosity fuel
forming of glass
full-term pregnancy
GAFs
give someone the cold shoulder
go for a run
good crop
Graham magnetic interval
hamburger
Hansen Spur
helve
heterophile leukocyte
horizontal regenerator
hunt out of house and home
inflammatory pseudotumor
ink writer
irrigation valve
jew-hater
lapide
law of lever
Lebbin's tests
ligamentur mediale
limbus foss? ovalis
local accounting firm
Lurgimetall alloy
macrocephalous
mantises
Melleril
Merksem
metradynamomete
model-theory
mouldering
Napanoch
nested barges
newly-furnisheds
nitrogen-containing alloy
non-insurable risk
non-military service
OTEC power plant
outdoing
package guidelines for custom hybrids
pagical
perforating fracture
performative bundle
pneumatic piston servo-drive
pogonia microstomum(p.br.)brid.
postantennal organ
power transfer
pregnancy complications
pull a shut-eye
Rayhorodka
rendering of service
ruck rover
sacred art
sales type lease
Schrecksbach
sedimentation reservoir
signal interface
soil humidity monitor
state of operation
substandard highway
sucking pigs
supportless
tension plate
tension seat
the spitting image of
tin pot
unipolar pulse
vena coronaria dextra
wanted ads
wheat screenings
wieslaw
wreathlike