单词：air pressure water system
单词：air pressure water system 相关文章
ESL Podcast 1183 Air and Water Pollution Julia: Stop poisoning us! Stop poisoning us! Robert: Why are you picketing in front of this factory? Julia: This factory is polluting our air and water. Theyre responsible for contaminating the environment wit
2016年ESL之日常生活
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.
火星生命
Water is a necessary resource for the health and survival of living things. But the availability of fresh water is decreasing for much of the worlds population. The United Nations estimates that about 3.6 billion people currently live in areas that f
2018年VOA慢速英语(十)月
旱灾的成因与影响 Its signs are subtle and slow: the earth dries; water levels fall; the rains do not come; and the land is gripped by drought. At its most basic, a drought occurs when more water is used than isreplenished. It is a balance bet
自然百科2016年
The air thins and they begin to lose the protective weight of the miles of air above them. The pressure is dropping, when you finally get to the stratosphere, and to the altitude we like to work at, it's only one one hundredth that of it's on the gro
探索与发现2014年
On airplanes, cabin pressure changes during takeoff and landing to help passengers breathe easy at high altitudes. These changes in air pressure may make adults ears feel a little funny, prompting a few yawns to equalize the pressure. But for babies,
初学者听力文摘精选
tell me how i'm supposed to breathe with no air? 快告诉我没有空气我该如何呼吸 if i should die before i wake 如果我在醒来之前就已没有呼吸 because you took my breath away 这是因为你带走了我的呼吸 losing you is li
经典英语爱情歌曲
Cohesion-tension Theory Atmospheric pressure can support a column of water up to 10 meters high. But plants can move water much higher; the sequoia tree can pump water to its very top more than 100 meters above the ground. Until the end of the ninete
英语小短文
Tell me how i'm supposed to breathe with no air If i should die before i wake Because you took my breath away Losing you is like living in a world without no air oh I'm here alone didn't wanna leave My heart won't move it's incomplete Is there an oth
美国偶像 American Idol
WHO: Millions Die Every Year from Air Pollution From VOA Learning English, this is Science in the News. Im Anna Matteo. And Im Christopher Cruise. Today on the program, we look at our natural world. We report on the price of air pollution on human li
2014年VOA慢速英语(五)月
The northeastern Spanish city of Zaragoza is hosting an international water fair to highlight the importance of this vital and increasingly threatened resource. Spain is no stranger to water scarcity. The country is juggling competing demands of urb
VOA标准英语2008年（七月）
Dallas Attacks West Nile Virus by Land, Air The aerial and ground fumigation programs are blanketing around 1,400 square kilometers of the county, but don't target all mosquitoes. Laura McGowan, who works with Clarke, the company contracted to carry
VOA标准英语2012年(八月)
去年美国偶像大赛的冠军Jordin Sparks与Chris Brown合作的单曲《No Air》成为美国本周数字下载量增长最快的单曲。 Artist：Jordin Sparks Ft. Chris Brown Song： No Air Tell me how I'm suppose to breathe with no air [oohhhh] [ Jordin S.] If I should die befor
音乐咖啡厅
There would soon be an explosion; the kettle would be burst open. It is in this way that boiler explosions are often caused. When there is too much steam in a boiler, and it cannot get out, it presses against the sides of the boiler, until at last th
英国学生科学读本
【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
英语听力广播—Listening
Cohesion-tension Theory Atmospheric pressure can support a column of water up to 10 meters high. But plants can move water much higher; the sequoia tree can pump water to its very top more than 100 meters above the ground. Until the end of the ninete
双语有声阅读
In 1993, water aerobics was only for senior citizens or patients in rehab. Nowadays, it encompasses a variety of trendy underwater sports, all of which are healthy. The body has 90 percent support when under water. That means the joints only have to
英语时差8，16
These algae are a genuine prodigy of creation, one of the wonders of world flora. 这些海藻类实在是造化的奇迹，宇宙植物界的一个奇迹。 This family produces both the biggest and smallest vegetables in the world. 地球上最小和
《海底两万里》中英双语有声读物
These are the normal navigational instruments, I replied, and I'm familiar with their uses. 这些是航海家常用的仪器，我答，我知道它们的用法。我现在看见的这个表盘，上面有能转动的针，那不是流体压力计吗？
《海底两万里》中英双语有声读物
Professor Gilbert Van Kerchhove from Belgium is the President and founder of a Beijing-based management consulting firm. He was deeply involved in the preparations of for the 2008 Olympics in Beijing. Van Kerchhove says one of the main issues leading
2015CRI中国国际广播电台