[五]硅酸[三]钙钠

Good morning Mrs. Hall. If none of your teeth are bothering you, I'll restore the tooth with the largest cavity. 霍尔太太,早安。 假如你的牙齿不让你难受的话, 那么我就把蛀的最厉害的牙补一补。 This is the tooth th

发表于:2018-12-03 / 阅读(223) / 评论(0) 分类 口腔临床英语对话

This is scientific American sixty seconds science. I am Amy Kraft. Got a minute? Sweat potatoes contains fiber, vitamin A and calcium, but the way that scientists think they can make them even more healthful is literally shocking. Researchers found t

发表于:2018-12-24 / 阅读(185) / 评论(0) 分类 Scientific American(八)月

When Pyrex(公司名) cookware first came out, it was advertised as the ice box to oven, because itwas made of borosilicate glass which could weather large temperature changes without undergoing thermo-shock and shattering. But today, Americans Pyrex

发表于:2018-12-24 / 阅读(152) / 评论(0) 分类 Scientific American(九)月

This is scientific American sixty seconds science. I'm Christopher Intagliata. Got a minute? When Pyrex cookware first came out, it was advertised as icebox to oven. Because it was made of borosilicate glass which could weather large temperature chan

发表于:2018-12-24 / 阅读(151) / 评论(0) 分类 Scientific American(九)月

Intermediate filaments - unlike microfilaments and microtubules, they are verystable. Instead of being stacked proteins, as in actin, intermediate filaments are built of interlocking proteins. A dense

发表于:2019-01-03 / 阅读(180) / 评论(0) 分类 医务英语

头孢菌素类 第三代 头孢地尼 Cefdinir Cefzon 头孢布坦 Ceftibuten 头孢布烯,Cedax 头孢卡品 Cefcapene Pivoxil 头孢卡喷新戊酰氧甲酯,Flomox 头孢噻肟钠 Cefotaxime So

发表于:2019-01-03 / 阅读(250) / 评论(0) 分类 医务英语

Salt is believed to be the single most harmful thing in our food, contributing to high blood pressure For years doctors have been telling patients with high blood pressure to cut down on the amount of salt in their diet. Now a prestigious panel of ex

发表于:2019-01-13 / 阅读(270) / 评论(0) 分类 VOA标准英语2010年(四)月

DAVID GREENE, HOST: So getting calcium in your diet is essential to keeping your bones strong. Well, what do you do if you can't do dairy? A Navajo graduate student at Northern Arizona University got really interested in that question when he came ac

发表于:2019-01-16 / 阅读(218) / 评论(0) 分类 2017年NPR美国国家公共电台8月

A few months ago the fairy tale came true. 几个月前,童话故事成真了! We announced to the world that we know what these streaks are. It's liquid water. 我们向世界宣布,我们已经知道这些条纹是什么了。是液态水。

发表于:2019-01-18 / 阅读(198) / 评论(0) 分类 TED演讲科学篇

Cassini just a few months ago also flew through the plume, and it measured silicate particles. 卡西尼太空船几个月前又从这些飞溅的水流中穿过,它检测到了硅酸盐颗粒。 Where does the silica come from? 这些硅从哪来的

发表于:2019-01-18 / 阅读(206) / 评论(0) 分类 TED演讲科学篇

And so i can see that there is hydrogen being produced by the supernova, and over here the yellow orange light is due to glowing atoms of sodium, it's the same sodium glow that we saw when I sprinkled the chemical into the fire, these ones here in th

发表于:2019-01-23 / 阅读(189) / 评论(0) 分类 探索与发现2015年

Under normal circumstances, each of your brain cells allows various substances, such as sodium, calcium and potassium to permeate its outer cell membrane. Once inside the brain cell, these substances help give the cell stimulus it needs to function p

发表于:2019-01-26 / 阅读(189) / 评论(0) 分类 英语听力文摘 English Digest

Science and Technology Plastics There and back again 科技 塑料 旧法新用 An old idea may help solve the problem of plastic waste 一个老方法也许可以帮助解决塑料垃圾的问题 PLASTICS were once regarded as wonder-materials. They

发表于:2019-01-26 / 阅读(192) / 评论(0) 分类 经济学人科技系列

Soon after taking up his position, Davy began to bang out new elements one after anotherpotassium, sodium,magnesium, calcium, strontium, and aluminum or aluminium, depending on which branch of English you favor. 上任不久,戴维开始宣布发现一

发表于:2019-01-29 / 阅读(213) / 评论(0) 分类 万物简史

地球村时代,英语和中文也全球化了。爱吃零食的你怎能不会看包装袋的英文呢?小心哦,不要一不留神,营养没跟上,脂肪增加不少了哟。健康又美味,包装英语跟我学! 国外食品的包装上,

发表于:2019-02-01 / 阅读(274) / 评论(0) 分类 实用英语

Here are some facts about sweet potatoes you probably don't know: 这里有一些关于红薯你可能还不知道的事实: Sweet Potatoes Originated in the Americas 红薯起源于美洲 They're in the family of plants that includes morning glori

发表于:2019-02-02 / 阅读(173) / 评论(0) 分类 阅读空间

manganese n. 锰(元素符号为Mn) mantle composition 覆盖物的成分 Mercury n. 水星 molten v. 溶化;adj. 熔铸的 monitor n. 监视器,监控 mudflow n.[地] 泥流 Neptune n. [天]海王

发表于:2019-02-02 / 阅读(253) / 评论(0) 分类 英文语法词汇

BEIJING, Nov. 7 (Xinhuanet) -- A huge asteroid will pass closer to Earth than the moon on Tuesday, but experts say there is no cause for alarm. Asteroid 2005 YU 55 will pass about 300-thousand kilometers from the earth. The giant space rock is about

发表于:2019-02-08 / 阅读(196) / 评论(0) 分类 英语新闻

The U.S. space agency NASA's Mars probe Phoenix has detected icy snow falling through the Martian atmosphere. The spacecraft has also discovered material in the planet's soil that is leading scientists a step closer in their conclusion that life pro

发表于:2019-02-08 / 阅读(206) / 评论(0) 分类 VOA标准英语2008年(十月)

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(341) / 评论(0) 分类 《海底两万里》中英双语有声读物
学英语单词
abbadoes
Achilles tendons
administrative problem
Afar triangle
ailanthus silkworm
alpha carbon
Amiphan
ammonium vanadium sulfate
anti-clutter
aqua chloroformi
army extension courses
assembly processing steps
axial air gap electric machine
Bacillus aegyptiacus
be under an obsession of
bengal line
bioastronautic, bioastronautical
bland valley
boarding officer
boat tail
built up foundation
cancer sera
cavalletti
chanute
chgd
compound tags
connection-oriented data transfer
control simulator
counter radar
country walnut
cribhouse
D-Flavanoids
dental floss holder
District Six
doghead
double helical mixer
eightysomethings
emergency sport
even chances
exterior-interior concurrent disease
family gyrinidaes
flowswift
foregrant
furnace entry table
Galatella fastigiiformis
gelsdorf
get no call
golding by dipping
half-knot
heavy and medium plate mill
hillal
holster controller
hyporhamphus dussumieri
ignorauntly
impoundings
indirect file context
Lesothian
lithic graywacke
majorizing set
mid-thigh
Mount Elbert
Mozhga
Nestorian
Nicolas de
nitrogen tetraoxide
non-cumulative preferred stock
nonbelievers
noncompetition
outbraying
pericrocotus cantonensis
plain cut-out
plane of survey
propionanilide
R.&C.C.
removal process
river fan
road membrane
scavenging of free radicals
screw coupling
shrivelleth
smule
spike-flowered maple
squeeze mouding
subcortex
tentative control regime
tenth parts
to decelerate
to get off scot-free
Tokarevka
touchtone dial
transitional belt (transition zone)
unidirectional fault
uninjuriously
vecordy
Vidal, I.
vitax
well-fought
xanthochromia striata palmaris
zero standard
zonograph
zurkhaneh