un. 辐射性穿过物质
[网络] 对辐射透明物质

material scientists admire spider silk for being lightweight and strong.now another arthropod product is getting into the act insect cuticle,the tough flexible material is inside insect skeleton.researchers at harvard * institute for biological inspi

发表于:2018-12-02 / 阅读(205) / 评论(0) 分类 Scientific American(十二)月

[00:03.89]You will hear three pieces of recorded material. [00:08.75]Before listening to each one, [00:12.90]you will have time to read the questions related to it. [00:17.55]While listening, [00:20.72]answer each question by choosing A, B, C or D. [

发表于:2018-12-03 / 阅读(247) / 评论(0) 分类 最新版英语听力教程

Now, I'm not against glass. It's an ancient and versatile material. 我并不是反对使用玻璃。玻璃毕竟是一种古老且通用性强的材料。 It's easy to manufacture and transport and install and replace and clean. 它们易于大量生产

发表于:2018-12-05 / 阅读(130) / 评论(0) 分类 TED演讲设计篇

This is the VOA Special English Health Report. The crisis at the damaged Fukushima Dai-Ichi Nuclear Power Station in northern Japan has raised worries about radiation risks. We spoke Tuesday with Jonathan Links, an expert in radiation health sciences

发表于:2018-12-16 / 阅读(147) / 评论(0) 分类 2011年VOA慢速英语(三)月

福岛向来访者力证食品安全 In the shadow of northern Japans snow-capped mountains, Kazuhiro Watanabes strawberries are plump and ready for picking; because of his advanced greenhouses, the crop is ripe for harvest even in early spring. 在日

发表于:2018-12-19 / 阅读(144) / 评论(0) 分类 VOA双语新闻 2015年3月

This is Scientific Americans 60-Second Science. I'm Cynthia Graber.This will just take a minute. Imagine giant fields filled with photovoltaic solar panels, soaking up rays. The best spots to put such panels are obviously sunny, with little rain. But

发表于:2018-12-24 / 阅读(132) / 评论(0) 分类 Scientific American(八)月

北京奥运28大项 参与,竞争,分享,进步 Flatwater 皮划艇静水 英文原文 All kayaks and canoes shall carry a vertical plate, made of non-transparent material, marked with black numbers on a white background, indicating the lane. The numbers on the plate

发表于:2018-12-30 / 阅读(238) / 评论(0) 分类 奥运28大项比赛

[00:03.81]bottom line :结余;结算 [00:05.82]bundle :n.搭售商品 [00:07.49]convention :n.(专业)展览会 [00:09.37]demonstration :n.展示 [00:11.46]entrance :n.入口 [00:13.29]go with :选择;决定采用 [00:15.17]high traffic :a.高流量

发表于:2018-12-31 / 阅读(286) / 评论(0) 分类 商务英语分类核心1000词汇

太阳能电池板能通过自发电脉冲震落其灰尘,以确保最大限度的获得光照。 Imagine giant fields filled with photovoltaic solar panels, soaking up rays. The best spots to put such panels are obviously sunny, with little rain.

发表于:2019-01-02 / 阅读(186) / 评论(0) 分类 60秒科学

ENVIRONMENT REPORT — March 15, 2002: Nuclear Pollution and Cancer By Mario Ritter This is the VOA Special English ENVIRONMENT REPORT. A recent report by the USA Today newspaper says that a large amo

发表于:2019-01-04 / 阅读(181) / 评论(0) 分类 健康与环境

Soon, your phone's cracked screen may have its own healing factor. 在不久的将来,摔碎的手机屏幕或将能够自我修复。 Scientists from the Department of Chemistry at the University of California, Riverside have developed a self-heal

发表于:2019-01-07 / 阅读(125) / 评论(0) 分类 英语新闻

Graphene: The Material of the 21st Century 21世纪的新材料石墨烯 Graphene is a type of graphite mineral. Experts often call it 'The Material of the 21st Century' because of its special properties. Some U.S. companies are already using graphen

发表于:2019-01-12 / 阅读(150) / 评论(0) 分类 2015年VOA慢速英语(三)月

It started with a simple experiment: take some graphite - the black stuff in the middle of a pencil - and put a piece of tape over it. When the scientists at the University of Manchester did that, they found that they could develop a material that co

发表于:2019-01-14 / 阅读(222) / 评论(0) 分类 VOA标准英语2010年(十)月

Russian-born Andre Geim and Konstantin Novoselov, both from Manchester University in Britain, won the prize for their groundbreaking experiments with graphene, a microscopic flake of carbon. The pair first extracted the super-thin flake from a piece

发表于:2019-01-14 / 阅读(157) / 评论(0) 分类 VOA标准英语2010年(十)月

Graphene Called Amazing, Versatile Material of the Future 前景光明的多功能材料石墨烯 In 2004, two scientists at the University of Manchester in England isolated a carbon-based material called graphene, with some unusual properties. Andre

发表于:2019-01-14 / 阅读(201) / 评论(0) 分类 VOA标准英语2014年(二月)

Scientists Create Blackest Material Ever Of all the black things in the universe only the infamous black holes are so black that not even a tiny amount of light can bounce back. But scientists have managed to create material almost as black, and it h

发表于:2019-01-14 / 阅读(195) / 评论(0) 分类 VOA标准英语2014年(七月)

Fukushima Uses UN Conference to Promote Its Food Safety 福岛向来访者力证食品安全 FUKUSHIMA, JAPAN In the shadow of northern Japans snow-capped mountains, Kazuhiro Watanabes strawberries are plump and ready for picking; because of his adva

发表于:2019-01-14 / 阅读(145) / 评论(0) 分类 VOA标准英语2015年(三月)

The first stars in our Milky Way were fearsome high-octane stars, burning their hydrogen fuel at tremendous rates, rushing through their life cycle. They like the rockslides. They live fast and die young. They run out of their fuel very quickly and e

发表于:2019-01-22 / 阅读(143) / 评论(0) 分类 自然百科2011年

WASHINGTON, March 30 (Xinhua) -- A trace amount of radioactive(辐射性的) iodine(碘) has been found in a sample of milk from the west state of Washington, the U.S. Environmental Protection Agency and the Food and Drug Administration (FDA) sai

发表于:2019-02-11 / 阅读(195) / 评论(0) 分类 英语新闻

19.At least 1 CTN. 至少一箱/件。 20.Theres minimum quantity.有最小起订量。 21.Can they be mixed?可以混装吗? 22.Mixed packing.混装。 23.Just a moment. Let me check.稍等,让我查一下。 24.Same price/size. 一样的价格

发表于:2019-02-19 / 阅读(199) / 评论(0) 分类 实用英语
学英语单词
abnormal E layer
abrasional behavior
afro-puerto
amynthas proasacceus
Archaeopsylla
atrioventricular groove
audio parameter
bag storage
Ban Phatang
Battle R.
benzenic
berryings
Bjφrkedal
bob-haired
boo-ings
Carte du Ciel
chord inclination
Corporation of Trinity House
Cotoneaster obscurus
culicoides (oecacta) hainanensis
customer metrics
cylindrical roller thrust bearing
cynocephalids
disabled train
divisional councils
doubly-curved shell
ear-shells
economic civilization
eluent
essence of bergamot
Fermi-Walker transport
flat element
forest reservation
friction snubbing device
gas payment
Gesvelst's network
giant pulse technique
Gordimer, Nadine
hallewell
head-pointer
hormone weedkillers
IFME
immunizer
impregnated paper
individual application
infectious polyradiculitis
interference methanometer
inteript
intermittent gas lift
isostatic subsidence
jarringness
Karatoulas
lands-for-peace
level-reversed bench
Logan Town
longshots
loxocorniculum tominga
Marconi plc
Marshall compaction hammer
microtarsala
mining camp
Mojave rattlesnake
multiaxial classification system
Musudan
non-exam subject
organized labour
orlov
pay on application
photo Darlington amplifier
pipoxolan
plate link chain
project evaluation approach
protopecten
protozoan commensals
psammyte
pseudoallelism
radio polarimeter
raoulia australiss
retinal microaneurysm
right of subrogation
right parenthesis
rise above the crowd
rubbed
rustproofing
Sambucus racemosa L.
script person
silver-fir (abies pectinata dc.)
spindlecelle
store ship
synergistic antioxidant
tactile hallucination
take out of bond
Tanganyika
terfas
time sequencing
Timmanah
unit file
vespa vivax
Weatherill
wick feed tray
Yedrovo
Zephyranthes grandiflora Lindl.