[化] 声速

sound velocity的用法和样例：

例句

Mach two equals twice the speed of sound.二马赫相当于声速的二倍。
"A sweet temper" is a figurative expression, but "sweet coffee" is not."甜蜜的性情"是个比喻的说法，而"甜咖啡"则不是。
The plane is flying at the velocity of sound.飞机以音速飞行。
As the velocity in the nozzle throat is sonic, the effect must be transmitted upstream through the boundary layer.当喷管喉部达到音速时，这种影响一定是通过附面层向上传播而引起的。

TED演讲:如何把熟蛋变生(2)

Here's the key part. 接下来是关键的部分。 The solution nearest the wall spins faster than the solution closer to the middle. 离试管壁最近的溶液，要比中间的溶液旋转得更快。 That difference in velocity creates sheer str

发表于:2018-12-18 / 阅读(119) / 评论(0)

TED演讲教育篇

英语分类词汇：光驱

BCF(Boot Catalog File，启动目录文件) BIF(Boot Image File，启动映像文件) CDR(CD Recordable，可记录光盘) CD-ROM/XA(CD-ROM extended Architecture，唯读光盘增强形架构) CDRW(CD-Rewritable，可重复刻录光盘) CLV(Constant

发表于:2018-12-18 / 阅读(207) / 评论(0)

英文语法词汇

赖世雄英语新闻听力通第74期:震撼NBA的总决赛

(LOS ANGELES, AP) Allen Iverson shook up the NBA Finals when he scored 48 points in the opener of the series. （美联社洛杉矶电）亚伦.艾佛森在NBA联赛的第一场比赛攻下48分，震撼NBA的总决赛。 The Philadelphia 76ers stunn

发表于:2018-12-28 / 阅读(128) / 评论(0)

赖世雄英语新闻听力通

篮球术语：助攻和篮板球

看到助攻，千万不要受汉语思维影响。助攻很简单，一点都不复杂，不信？看外电一段有关小巨人姚明缺席NBA全明星赛的相关报道： NBA Houston Rockets center Yao Ming will not play in next month's National

发表于:2019-01-03 / 阅读(104) / 评论(0)

奥运英语

SSS 2009-04-15

This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute. It's April 15th. Like many people around the country, you might be feeling your blood pressure rise as you deal with everyone's favorite activityfiling

发表于:2019-01-08 / 阅读(153) / 评论(0)

Scientific American(四)月

SSS 2009-06-15

This is Scientific American's 60-second Science. I'm Steve Mirsky. Got a minute? Could it be that our understanding of rain was all wet? A new study says that some drops of rain are falling faster than they should be. Which ultimately means that it m

发表于:2019-01-08 / 阅读(156) / 评论(0)

Scientific American(六)月

TED演讲:探索世界最深洞穴(9)

We have to beat that. 我们必须克服它。 We can do it because in space there are no aerodynamics. 我们能够这样做是因为太空里没有空气阻力。 We can go and use inflatable systems for almost everything. 我们几乎总是能够使

发表于:2019-01-18 / 阅读(99) / 评论(0)

TED演讲商业篇

Clippers win over Pistons 129-97

LOS ANGELES, March 10 (Xinhua) -- Blake Griffin finished with 22 points and eight rebounds, Chris Paul contributed 20 points with 14 assists as the Los Angeles Clippers handed the Detroit Pistons 5th straight defeat 129-97 on Sunday. The 129 points w

发表于:2019-02-03 / 阅读(155) / 评论(0)

英语新闻

旅游英语:关于乘机旅行的常用词汇

旅游英语 :关于乘机旅行的常用词汇,旅游必备的英语词汇汇总. boarding check 登机牌 plane ticket 飞机票 flight, flying 飞行 bumpy flight 不平稳的飞行 smooth flight 平稳的飞行 ramp 扶梯 altitude, height 高度

发表于:2019-02-04 / 阅读(125) / 评论(0)

实用英语

Philadelphia guard Richardson undergoes successful knee surgery

WASHINGTON, Feb. 19 (Xinhua) -- NBA's Philadelphia 76ers announced Tuesday that their guard Jason Richardson has undergone successful knee surgery. The 12-year NBA veteran, who has not played for a month and will be sidelined for the rest of the seas

发表于:2019-02-04 / 阅读(150) / 评论(0)

英语新闻

用英语如何描述市场行情

1．市况上扬: The market advances/ gains /rises. 2．市况下挫: The market declines /falls/loses. 3．市况活跃: The market booms. The market is excited. The market becomes active. The market becomes brisk. 4．市况暴跌停滞: The m

发表于:2019-02-06 / 阅读(127) / 评论(0)

天天商务口语

如何用英语描述一些简单市场行情

市况上扬: The market advances/ gains /rises. 市况下挫: The market declines /falls/loses. 市况活跃: The market booms. The market is excited. The market becomes active. The market becomes brisk. 市况暴跌停滞: The market slumps. The ma

发表于:2019-02-06 / 阅读(113) / 评论(0)

天天商务口语

教师课堂屏蔽手机信号被停职

A Florida high school teacher was suspended without pay on Tuesday for five days for using a cell phone jammer to block students' cell phone service at school. 佛罗里达州一位高中教师于近日因在班里使用信号屏蔽器来阻止学生上

发表于:2019-02-06 / 阅读(141) / 评论(0)

阅读空间

嫦娥5号探测器今年将带回月球土壤

China's unmanned lunar probe Chang'e-5, set to be launched around December 2017, will bring lunar soil samples back to Earth, says Wu Yanhua, deputy chief of the China National Space Administration. 国家航天局副局长吴艳华近日表示，我国

发表于:2019-02-07 / 阅读(88) / 评论(0)

英语新闻

Houston Rockets beat Memphis Grizzlies 121-96

HOUSTON, Dec. 22 (Xinhua) -- James Harden scored 31 points and dished out eight assists to lead the Houston Rockets to its 121-96 victory over the Memphis Grizzlies on Saturday. It was the Rockets's 13th straight home win over the Grizzlies, who have

发表于:2019-02-08 / 阅读(94) / 评论(0)

英语新闻

Guangdong hands Beijing 5th defeat in CBA

BEIJING, Jan. 4 (Xinhua) -- Defending champions the Guangdong Hongyuan handed the Beijing Ducks their second home defeat of this season with a 112-99 win in the 20th round of Chinese Basketball Association (CBA) league here on Wednesday. The Beijing

发表于:2019-02-13 / 阅读(110) / 评论(0)

英语新闻

经济学人:云巅之上畅想未来交通(下)

No matter which manufacturer is quickest to gain velocity, Uber, a ride-hailing firm, aims to be at the centre of things. 无论哪家制造商最先让飞行器达到预期的速度，叫车公司优步的目标是成为该产业的核心。 On Apri

发表于:2019-02-16 / 阅读(89) / 评论(0)

经济学人商业系列

《荒野求生》之跟着贝尔去冒险第475期:最隐蔽的方式

The atmospheric pressure as we climb is getting so low 气压在逐渐减小 that without any air supply,I'd be unconscious within 20 seconds. 如果不戴呼吸器不用20秒我就会休克过去 I have to breathe 100% oxygen to avoid getting nitro

发表于:2019-02-17 / 阅读(115) / 评论(0)

荒野求生

Varejao to miss up to two months

CLEVELAND, Jan. 9 (Xinhua) -- Cleveland Cavaliers' Brazilian center Anderson Varejao will be sidelined in the next two months after it was revealed he needs surgery on his right knee. Varejao suffered the injury during the Cavaliers' 113-99 defeat to

发表于:2019-02-18 / 阅读(156) / 评论(0)

英语新闻

英语听书《白鲸记》第705期

As an overladen Indiaman bearing down the Hindostan coast with a deck load of frightened horses, careens, buries, rolls, and wallows on her way; 如同一只超载的东印度公司贸易船，甲板上装着许多惊惶失措的种马，正在印度斯

发表于:2019-03-10 / 阅读(233) / 评论(0)

白鲸记

最新学习文章

热门学习文章

热门标签

英语听力 VOA标准英语 VOA 英语歌曲口语听力提高听力材料听力教程英语学习 NPR 英语口语 VOA慢速英语美国国家电台儿童英语 VOA英语小学英语 cnn VOA常速英语标准英语英文歌曲听电影学英语英语单词英文电影慢速英语 CRI 美联社新闻美国有线新闻加州分级澳洲新闻流行歌曲常速英语 ABC新闻快递疯狂英语英语读物听力棚车少年经济学人英语词汇商务英语 VOA双语新闻 BBC 中国电台大学英语 Treasures 加州语文 BBC英语英语听力网站 VOA英语教学词汇万花筒 SSS VOA英语听力 AP 新概念分级英语英语广播听力精选英语播客英文绘本 TED演讲赖世雄英语MP3 CCTV9英语新闻 lesson 英语新闻初中英语学英语英语语法历史上的今天英文广播剧英语游戏原版英语小说英语有声读物书虫英语牛津英语读物访谈录新闻一分钟考研英语英语每日在线听新闻 Us 新概念英语地道英语单词第二册自然百科高中英语 sports 实用英语 MP3听力辛沛沛 ESL英语第一册英语每日一句 unit 新东方 GRE 每日一词 BBC听力

学英语单词

astragalus mongolicus bune