多级谐波齿轮传动

SSS 2010-05-20

This is Scientific American's 60-Second Science. I'm Christopher Intagliata. Got a minute? Why do some chords sound sweet but others make you wince? Well it appears our earsor at least the ears of 250 Minnesota undergradsprefer chords containing harm

发表于:2018-12-24 / 阅读(110) / 评论(0)

Scientific American(五)月

ESL杰夫的一天第57期:开车上班讲解(8)

I used to drive a stick shift, but as I get older, I like my automatic transmission more and more. 我过去常常开手动挡的车，但当我年龄大了以后，我则越来越喜欢开自动挡的车。 There are two kinds of transmissions two k

发表于:2018-12-28 / 阅读(82) / 评论(0)

ESL杰夫的一天

ESL杰夫的一天第56期:开车上班讲解(7)

I back out into the driveway onto the street, or into the street. 我把汽车从车道倒到大街上。 The driveway, driveway, is what connects the garage to the street. 车道（driveway）是连接车库和街道的道路。 It's the space that

发表于:2018-12-28 / 阅读(81) / 评论(0)

ESL杰夫的一天

每日一词【107】set the stage

今天我们要学的词组是set the stage。 Set the stage的意思是为某件事做好准备，提供条件。比如，希拉里.克林顿06年再次当选参议员，为她08年竞选总统提供了条件 -- The reelection set stage for her pres

发表于:2018-12-30 / 阅读(100) / 评论(0)

英语每日一词

优美音乐来自和谐的数学组合(有声)

Students who listened to different chords rated as more pleasing the ones that westerners think of as harmonious, the individual notes of which have definite mathematical relationships 【英文文本】 Why do some chords sound sweet but others make

发表于:2019-01-02 / 阅读(98) / 评论(0)

60秒科学

2007年VOA标准英语-Brad Paisley's '5th Gear' Takes Fans on a Music

By Mary Morningstar Washington 25 July 2007 Country legend George Jones once wrote a letter to Brad Paisley that said, I am counting on you to carry on the tradition and make folks sit up and listen to what good Country music should sound like. As VO

发表于:2019-01-07 / 阅读(153) / 评论(0)

2007年VOA标准英语（七月）

CNN 2010-05-16

Vicious weather in the southern plains. Two deadly tornadoes swirling in unison in southern Oklahoma. All of it caught on tape. There comes one right there. Look at them. They are all over. As you can hear, storm chasers were only reporters because i

发表于:2019-01-08 / 阅读(152) / 评论(0)

CNN2010年(五)月

First stage of Egypt's draft constitution referendum ends

CAIRO, Dec. 15 (Xinhua) -- The first stage of the referendum of Egypt's draft constitution ended Saturday night at 11:00 p.m. local time (2100 GMT). Due to the high turnout, the closing time of the referendum was extended from 7:00 p.m. local time (1

发表于:2019-01-08 / 阅读(100) / 评论(0)

英语新闻

Are You Ready to Face the Music?

Are You Ready to Face the Music? Now, the VOA Learning English program Words and Their Stories. There are so many expressions in American English that sound pleasant but are not. Face the music is a good example. When someone says they have to face t

发表于:2019-01-12 / 阅读(74) / 评论(0)

2016年VOA慢速英语(五)月

2012年手机将实现无线充电

日本富士通实验室的研究人员开发了一种无线充电系统，可同时给一定范围内的手机、数码相机及手提电脑等各种移动设备充电，无需使用电缆。该系统最早可于2012年正式推出使用。该系统被

发表于:2019-01-19 / 阅读(184) / 评论(0)

阅读空间

英语词汇分类：汽车英语词汇

first gear 一档second gear 二档reverse 倒车档two-stroke engine 二冲程发动机diesel 柴油机limousine 豪华轿车drophead 活动车篷汽车（美作：convertible）racing car 赛车roads

发表于:2019-01-30 / 阅读(91) / 评论(0)

英文语法词汇

重磅！三星推出新款智能手表Gear A

Details about Samsung's next big smartwatch have been trickling out for weeks. But now a new report gives us the most detailed look yet Samsung's next wearable. 关于三星下一代智能手表的细节已流传数周。但现下有一份新报告向我

发表于:2019-02-01 / 阅读(129) / 评论(0)

阅读空间

每日一词【798】gear up：做好准备

今天我们要学的词是gear up。 Gear up, 做好准备。The police are gearing up for a crackdown on drunk driving, 警察正在积极准备采取行动，严厉打击酒后驾车。九月一到，学校就要开学了。Schools all over the co

发表于:2019-02-05 / 阅读(96) / 评论(0)

英语每日一词

VOA标准英语2010年-Catherine Russell Releases Blues Influ

Vocalist Catherine Russell is always searching for that next great melody. She's found more than a dozen of them to sing on her latest album, Inside This Heart Of Mine. Catherine Russell is a perfectionist when it comes to choosing her material. Her

发表于:2019-02-06 / 阅读(96) / 评论(0)

VOA标准英语2010年(六)月

雅思分类词汇：汽车词汇

first gear 一档 second gear 二档 reverse 倒车档 two-stroke engine 二冲程发动机 diesel 柴油机 limousine 豪华轿车 drophead 活动车篷汽车 (美作:convertible) racing car 赛车 saloon 轿车 (美作:sedan) roadster 敞蓬车 wecker, beat-up car, jalopy 老爷车 notch

发表于:2019-02-07 / 阅读(142) / 评论(0)

英文语法词汇

Rodriguez takes stage and overall lead in Vuelta

MADRID, Aug. 27 (Xinhua) -- Joaquin Rodriguez won his second stage of this season's Vuelta de Espana (Tour of Spain) cycle race, which finished in the town of el Escorial on Saturday. Rodriguez was the strongest finisher on the steep ramp at the end

发表于:2019-02-08 / 阅读(114) / 评论(0)

英语新闻

US Women Gear Up for World Cup

The sixth FIFA Women's World Cup kicks off in Germany in June, with the team from the host nation as the two-time defending champion. The United States women's soccer team won the gold medal at the 2008 Beijing Olympics and is ranked number-one in th

发表于:2019-02-08 / 阅读(135) / 评论(0)

英语新闻

Lamy: Doha negotiations need higher gear

GENEVA, Oct. 19 (Xinhua) -- The WTO Director-General Pascal Lamy told the Trade Negotiations（谈判,磋商） Committee on Tuesday that the foremost challenge over the next several weeks is to take the engagement on Doha negotiations to a higher ge

发表于:2019-02-08 / 阅读(121) / 评论(0)

英语新闻

2016年CRI Virtual Reality Takes Center Stage at MWC 2016

The biggest thrill at the Mobile World Congress is a white-knuckle roller coaster ride. At the Samsung booth, people are lining up all day to take a virtual ride. Well, it was an amazing experience. I really enjoyed it. It is like being there, it is

发表于:2019-02-21 / 阅读(90) / 评论(0)

2016CRI中国国际广播电台

omg美语：0403 OMG! 美语 Get Your Butt in Gear!

Get your BUTT in gear!!!! 我们今天一起来看看怎么用美语口语说开始做某件事！ Get on that! 开始做某件事 2) Get going on that! 开始做某件事 3) Get your butt in gear! 开始做某件事!

发表于:2019-03-02 / 阅读(138) / 评论(0)

OMG美语

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