单词：power standing wave ratio (pswr)
单词：power standing wave ratio (pswr) 相关文章
P: This is terrific. I can't believe we are in Hawaii, Yang Chen! Y: I can't believe it, either. 我们是不是要在沙滩上晒太阳? Patrick, did you bring your bikini? P: Yang Chen., could you be serious for just one moment? Y: OK. P: I'm going
体育美语
One of the newest sources of alternative energy is also one of the oldest - water power. The 19th century water wheel, though, bears no resemblance to the 21st century contraptions powered by ocean waves. The wave energy sector has been slow to coale
VOA标准英语2010年(十一)月
图片 by Jason Marshall Some math is functional. Some math is fun. And some math is simply stunning. If that last description sounds improbable to you, then today just might change your mind. Because now that weve covered enough ground, were going t
数学英语
Cameras captured the moment the earthquake hit at 2:46 on Friday afternoon in Japan. The nation's lawmakers felt the power of the magnitude 8.9 force. And the cameras rolled here in a Sendai newsroom about 90 miles from the quake. It set off this hug
万花筒2011年
Joel: So, Mitchell, I only surfed for about a year and I never got very good at it. I wonder if you could explain how a beginner goes about learning how to surf. Mitchell: Well, that's a tough question because I was surfing ever since I was small so
原版英语对话1000个
[00:04.99]damage lecture pollute pollution [00:08.87]损害 讲课;演讲 污染 污染 [00:12.75]nuclear nuclear waste radiation fit [00:17.14]原子核的;原子能的 核废弃物 放射;放射物 适合的 [00:21.52]be fit for hear about room sta
高中英语人教版高二
Waves 波浪 A wave is the movement of water. 波浪是水的运动。 Why do waves happen? 波浪是怎么产生的呢？ Waves are made when the wind blows over the surface of water. 风吹水面就会产生波浪。 On the beach, you probably watc
与美国小学生一起学英文第10册
US Agency Announces Wave Energy Prize Competition 美国能源部发起能源奖竞争 Experts say that sun and wind are the richest sources of clean, renewable energy. But ocean waves also create powerful, clean energy. So, the U.S Department of Ene
2015年VOA慢速英语(五)月
A severe heat wave sweeping across the plains of India has claimed at least 100 lives. It has also led to power and water shortages in many parts of the country, including the capital, New Delhi. Dogs join daily wage laborers and rickshaw pullers as
VOA标准英语2009年(六月)
Harnessing Ocean Wave Power Provides Cheap Electricity 利用海洋波浪提供廉价电力和饮用水 WASHINGTON An often overlooked renewable energy resource is the power of ocean waves. Scientists in California say harnessing energy from the regu
VOA标准英语2014年(三月)
MICHEL MARTIN, HOST: Let's talk midterm elections now. The enthusiasm of Democrats is a major force shaping this year's crop of candidates. Among the results of a newly energized Democratic Party, far more women are running and expected to run in thi
2018年NPR美国国家公共电台3月
SCOTT SIMON, HOST: The word of the week is covfefe. Ask your doctor about covfefe. (Singing) Say it loud, and there's music playing. Say it's soft, and it's almost like praying - covfefe. 12:06 a.m. Wednesday morning, President Trump tweeted, despite
2017年NPR美国国家公共电台6月
And then there's a guy standing next to her, with, like, an espresso cup, and he's like... 然后她旁边站着一个男人，拿着 一个咖啡杯，他就这样... And it says, What brings you today? 然后照片还写着，哪阵风把你吹来了
TED演讲商业篇
BEIJING, May 13 (Xinhuanet) - China's central bank announced on Saturday it would lower the reserve requirement for commercial lenders by 50 basis points, the second time it has taken such action this year to inject more market liquidity and shore up
英语新闻
音乐咖啡厅:Aqua - Aquarius 相关介绍：Aqua（水叮当）这个乐队组合来自北欧，由4人组成：Lene Grawford Nystrom和Rene Dif负责声音，Soren Rasted和Claus Norreen负责制作。他们出道的第一张专辑Aquriuml 中的单
音乐咖啡厅
Aquarius By Aqua Aquarius, was born the night. 水瓶座,你诞生在夜晚。 The shining stars. 你是闪烁的明星。 Needed brighter shining light. 希冀更亮的光辉。 Aquarius was my savior. 水瓶座,是我的守护人。 It came along. 它
好听的英文歌曲
a photo of my family This is a photo of my family.It was taken in the Ocean Park by a tourist last year.Look!People who is in the picture is smiling! The woman who is standing in the front is my mother .She is young.She is a teacher of Liannan Primar
英语作文
The death toll from the heat wave currently gripping India has surpassed 13-hundred, with temperatures soaring above 47 degrees in certain parts of the country. Southern India's Andhra Pradesh has recorded over a thousand deaths. From last one week,
2015CRI中国国际广播电台
So we know that in primate hierarchies, if an alpha needs to take over, 灵长动物的社群阶级里，如果一个强势雄性想要夺权， if an individual needs to take over an alpha role sort of suddenly, 如果一个雄性突然想要争取首
TED演讲教育篇
Next time youre sitting in the tub, try the following experiment. Stand up quickly, being careful not to fall over. The water will slosh over to fill in the place where your body was, and then slosh back in the other direction, and so on. You have cr
英语时差8，16