[化] 蒸气压渗透法

Horizon - Life On Mars 火星生命 - 3

Conditions on Mars were so harsh that it was hard to imagine any life surviving there. The idea of sophisticated aliens was wiped out. We know that conditions on Mars today are not very good for life.

发表于:2018-12-07 / 阅读(112) / 评论(0)

火星生命

Work Pressure,Work Pressure范文

ork Pressure Work pressure refers to the compelling force or influence that comes from one's work. Nowadays with the competition in the work field becoming more and more fierce (激烈), work pressure has become a serious problem for every person. It

发表于:2018-12-12 / 阅读(138) / 评论(0)

英语四级作文范文

SSS 2008-08-25

This is Scientific American's 60-Second Science. I'm Steve Mirsky . Got a minute? For accurate weather forecasting and climate analysis, researchers need the best models possible about how the air circulates above the earth. And a new study is challe

发表于:2018-12-24 / 阅读(113) / 评论(0)

Scientific American(八)月

英语歌曲:直到我遇见你 The Sunstreak - Until I Met Y

直到我遇见你 The Sunstreak - Until I Met You Until I Met You The Sunstreak I once believed that there was no one for me, until I met you, But I couldnt see how happy I could be, until I met you, Until I met you, You Standing alone, no one to ca

发表于:2019-01-16 / 阅读(243) / 评论(0)

好听的英文歌曲

听歌学英语:温暖情歌Michael Buble - Haven't Met You Y

Havent Met You Yet by Michael Buble I'm not surprised Not everything lasts I've broken my heart so many times I stop keeping track Talk myself in I talk myself out I get all worked up And then I let myself down I tried so very hard not to loose it I

发表于:2019-01-16 / 阅读(147) / 评论(0)

听歌学英语

HEALTH REPORT - Blood Pressure Drugs May Prevent Dry Eye Syn

HEALTH REPORT - Blood Pressure Drugs May Prevent Dry Eye Syndrome By Jerilyn Watson Broadcast: Wednesday, April 07, 2004 This is the VOA Special English Health Report. Many people around the world suf

发表于:2019-01-19 / 阅读(170) / 评论(0)

健康与经济

英语听力：探索发现科学新发现：我们的大气层-6

In contrast, Jupiter and Saturn are all atmosphere. Unlike Earth, Jupiter doesnt really have a solid surface that you could stand on and then have your head up in the atmosphere looking at the clouds. Its just a giant, giant gas ball. Only one other

发表于:2019-01-23 / 阅读(88) / 评论(0)

探索与发现2014年

电子香烟惹争议

电子香烟惹争议 Should electronic cigarettes be a new option for smokers trying to kick the habit? Reactions from Americans are mixed. More than half of people questioned in a poll think electronic cigarettes should be regulated by the US Food

发表于:2019-02-05 / 阅读(96) / 评论(0)

实用英语

2007年VOA标准英语-Russian Cosmonauts Target Kazakh City for Earth

By Valer Gergely Kazakhstan 18 May 2007 Soyuz capsule re-enters Earth A Russian cosmonaut and two American astronauts returned to Earth last month, landing in Central Kazakhstan aboard the Soyuz re-entry vehicle. VOA correspondent Valer Gergely visit

发表于:2019-02-05 / 阅读(159) / 评论(0)

2007年VOA标准英语（五月）

旅游人们最爱带啥? 国人大爱方便面

Forget flip flops and sun tan lotion, it's coffee and ketchup that holidaymakers consider their packing essentials, according to a new study. 一项最新研究显示，度假行李中的必备物品根本不是人字拖和防晒霜，而是咖啡和番

发表于:2019-02-09 / 阅读(83) / 评论(0)

阅读空间

Vast water vapor beyond solar system found

BEIJING, Oct. 21 (Xinhuanet) -- A team of European researchers announced that they have found vast water vapor out of our solar system, according to a study in the U.S. journal Science Friday. Using Herschel Space Observatory, a European Space Agency

发表于:2019-02-09 / 阅读(125) / 评论(0)

英语新闻

英语听力：自然百科金星和水星旅行指南 Venus and Mercury-16

Congratulations, you've arrived on the hottest surface in the solar system. Here, the official temperature is eight hundred seventy degrees Fahrenheit. Day or night, equator or pole, the searing heat never varies more than a few degrees, and thats wh

发表于:2019-02-15 / 阅读(170) / 评论(0)

自然百科2012年

科学喝水要知道的4件事

【英文原文】 If I were to stop drinking water right now, how long could I live? There are several different factors involved here. A human being isnt an automobile which needs a certain amount of gas. There are conditions under which a person c

发表于:2019-02-16 / 阅读(92) / 评论(0)

英语听力广播—Listening

英语听力文摘 English Digest 420、无形的力量

The Invisible Hand 无形的力量 A: What's going on? B: Check out the setup , Yaoyao. A: A stove, an empty aluminum soda can, kitchen tongs , and a saucepan . Are you experimenting with a new recipe ? B:No, i'm experimenting with air pressure. A:Ho

发表于:2019-02-16 / 阅读(98) / 评论(0)

英语听力文摘 English Digest

Pressure

A 104 year-old woman was being interviewed by a reporter: And what do you think is the best thing about being 104? the reporter asked. She simply replied, No peer(窥视）pressure.

发表于:2019-02-18 / 阅读(140) / 评论(0)

趣味英语

英语听力文摘 English Digest 354、致命的脱水

Dehydration 脱水 If I were to stop drinking water right now, how long could I live? There are different factors involve d here. A human being isnt an automobile which needs a certain amount of gas. There are conditions under which a person could di

发表于:2019-02-24 / 阅读(120) / 评论(0)

英语听力文摘 English Digest

万物简史第386期:浩瀚的海洋(5)

There are 320 million cubic miles of water on Earth and that is all we're ever going to get. 地球上有13亿立方公里水，这是全部。 The system is closed: practically speaking, nothing can be added or subtracted. 系统已经关闭，说得明

发表于:2019-02-25 / 阅读(121) / 评论(0)

万物简史

英语听书《白鲸记》第785期

I know not that any other author has hinted of the matter; 我不知道是否有其他作家提及此事， but by inference it seems to me that the sturgeon must be divided in the same way as the whale, 不过据我推断，鲟鱼也一定是按大鲸

发表于:2019-02-25 / 阅读(112) / 评论(0)

白鲸记

你是否还会坚持原来的样子

Surmounting Life's Obstacles - Do You Cling to What You Were Before? 跨越生命中的障碍您还坚持原来的样子吗? A little stream flowed down from a high mountain far, far away through many villages and forests, until it reached a desert.

发表于:2019-03-03 / 阅读(179) / 评论(0)

英语美文

英语听书《白鲸记》第324期

He was going on with some wild reminiscences about his tomahawk-pipe which, it seemed, had in its two uses both brained his foes and soothed his soul, 他是在对他那烟斗斧发狂思,那东西,在我们直接注意这个熟睡的索匠的时候,好

发表于:2019-03-10 / 阅读(161) / 评论(0)

白鲸记

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