镜头开度;镜头孔径;透镜孔

lens opening的用法和样例：

例句

A very small lens aperture is employed to correct spherical aberration, but this sevrely limits the final resolution.可以用一个非常小的透镜孔阑来校正球差，但这会严重地影响最终鉴别率。

'The Diamond Lens' by Fitz-James O'Brien, Part One

Our story today is called The Diamond Lens. It was written by Fitz-James O'Brien. We will tell the story in two parts. Now, here is Maurice Joyce with part one of The Diamond Lens. When I was ten years old, one of my older cousins gave me a microscop

发表于:2018-12-08 / 阅读(559) / 评论(0)

2018年VOA慢速英语(二)月

清洁眼镜的最佳方式

Nearly 50% of Americans wear corrective glasses, according to the trade group Vision Council. And most of them are guilty of the biggest crime in lens care: Exhaling onto their lenses, then wiping the fog off with their shirt sleeves. But does this r

发表于:2018-12-12 / 阅读(158) / 评论(0)

英语阅读理解

VOA慢速英语2011--Short Story: ‘The Diamond Lens’ by F

AMERICAN STORIES - Short Story: The Diamond Lens by Fitz-James O'Brien (Part 2) Now, the Special English program, AMERICAN STORIES. (MUSIC) Our story is called The Diamond Lens. It was written by Fitz-James O'Brien. Today we will hear the second and

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2011年VOA慢速英语(六)月

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Our story is called The Diamond Lens. It was written by Fitz-James O'Brien. Today we will hear the second and final part of the story. Here is Maurice Joyce with part two of The Diamond Lens. When I was a child, someone gave me a microscope. I spent

发表于:2019-01-03 / 阅读(392) / 评论(0)

2018年VOA慢速英语(三)月

SSS 2010-06-02

After hundreds of years, the most common, basic microscopes still operate by means of the same old hardware: the lens. But what if you could do away with that lens and create a microscope that fits on a cell phone? Thats what researchers led by Aydog

发表于:2019-01-08 / 阅读(169) / 评论(0)

Scientific American(六)月

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This is the VOA Special English Health Report. Governments, businesses and other groups have promised to add three billion dollars to the fight against malaria. The promises came last week at a meeting at the United Nations in New York. The money wi

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VOA慢速英语2008（十）月

VOA慢速英语2011--Short Story: ‘The Diamond Lens,’ Par

AMERICAN STORIES - Short Story: The Diamond Lens, Part 1, by Fitz-James O'Brien SHIRLEY GRIFFITH: Now, the Special English program, AMERICAN STORIES. (MUSIC) Our story today is called The Diamond Lens. It was written by Fitz-James O'Brien. We will te

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2011年VOA慢速英语(六)月

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2016年VOA慢速英语(九)月

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幽灵照片问世 Photographer John Milleker is setting up for a spirit photo shoot in Sky Meadows State Park in Delaplane, Virginia. But first, he tells visitors about William Mumler, who came up with the idea of spirit photography. 在弗吉尼亚州

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VOA标准英语2016年(一月)

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Apple Inc. unveiled its new water- and dust-resistant iPhone 7 and a new version of its Apple Watch with high-resolution cameras at its fall product event on Wednesday, and said a Super Mario game was coming to the new phone and Pokemon Go would feat

发表于:2019-01-17 / 阅读(180) / 评论(0)

实用英语

每日一词【1014】opening：首开，首次

今天我们要学的词是opening。 Opening, 首开。动画大片《玩具总动员3》上映后好评如潮。 Toy Story 3 made $41 million on opening day, 《玩具总动员3》上映第一天票房收入就高达四千一百万美元。 The fir

发表于:2019-01-20 / 阅读(169) / 评论(0)

英语每日一词

音乐咖啡厅:Fady Maalouf - Opening night

音乐咖啡厅:Fady Maalouf - Opening night 相关介绍：红翻全球的话题性Pop Idol系列歌唱比赛之第五届德国版Deutschland sucht den Superstar亚军得主Fady Maalouf，今年刚满29岁生日，生于战火不断的黎巴嫩，为了

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音乐咖啡厅

VOA慢速英语20060401b

AMERICAN STORIES - The Diamond Lens, Part OneBy O'Brien, Fitz-James Broadcast: Saturday, April 01, 2006 Announcer: Now, the Special English program, AMERICAN STORIES. (MUSIC) Our story today is called

发表于:2019-01-30 / 阅读(158) / 评论(0)

2006年慢速英语（四）月

VOA慢速英语20060408b

AMERICAN STORIES - The Diamond Lens, Part TwoBy Fitz-James O'Brien Broadcast: Saturday, April 08, 2006 Announcer: Now, the Special English program, AMERICAN STORIES. (MUSIC) Our story is called The Di

发表于:2019-01-30 / 阅读(301) / 评论(0)

2006年慢速英语（四）月

That's the difference 这就是区别所在

That's the difference 这就是区别所在 A teenager lost a contact lens while playing basketball in his driveway. yKV中国英语学习网 After a fruitless search, he told his mother the lens was nowhere to be found. Undaunted, she went outside a

发表于:2019-02-07 / 阅读(185) / 评论(0)

趣味英语

London Olympics opening ceremony details revealed

LONDON, June 12 (Xinhua) -- Danny Boyle, the artistic director of the London Olympic Games opening ceremony, said on Tuesday that the July 27 ceremony will feature British countryside. He said that the opening scene of the ceremony will be called Gre

发表于:2019-02-08 / 阅读(160) / 评论(0)

英语新闻

音乐咖啡厅:LeAnn Rimes - Give Me Something (I Can't Give Myself)

You know I don't need you You know I don't need your hell If you going give me something Well give me something I can't give myself Oh, don't want your money Don't want your rolodex of friends Already have me a daddy Take a new picture for your portr

发表于:2019-02-09 / 阅读(243) / 评论(0)

音乐咖啡厅

与眼有关的专业术语

Nose bridge 鼻中 Tip 脚套 Temple 脚丝 Plating 电镀 Printing 印字 Lase 镭射 Spectacle frames 眼镜架 Sunglasses 太阳眼镜 Sports spectacles 运动眼镜 kid's eyewear 儿童眼镜 Reading glasses 老花镜 Contact lens 隐形眼镜 Gl

发表于:2019-02-13 / 阅读(146) / 评论(0)

实用英语

照相的英语表述

1. Hey, look at the chick over there. ?? 看看在那边的女孩. Kodak Tri-x film, please. 请给我柯达3-x胶卷。 Thirty-six exposures, Sir. 三十六张的胶卷，先生。 Will you please pose for your picture? 请你摆好姿势准备拍照好

发表于:2019-02-20 / 阅读(119) / 评论(0)

英语口语

Olympic opening ceremony will be full of surprises

LONDON, July 26 (Xinhua) -- The best kept secret of the Olympic Games at the moment is what the opening ceremony will be like, but from the details revealed by the Olympic authorities and partially leaked by some of the performers, it looks set to be

发表于:2019-03-11 / 阅读(1596) / 评论(0)

英语新闻

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学英语单词

acropora clathrata

all of a much

andre malrauxes

antibiotic-assoeiated(pseudomembranous)colitis

automatic inboard venting (aiv) tank

best invariant decision rule