透镜孔径比

'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

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

发表于:2018-12-16 / 阅读(139) / 评论(0)

2011年VOA慢速英语(六)月

Five Digital Camera Mistakes

Five Digital Camera Mistakes by Vance Fry Everyone who buys a digital camera starts out as a digicam newbie. Avoid these five blunders and you won’t look like a newbie for long 1 Mistake 1: Not lear

发表于:2018-12-19 / 阅读(184) / 评论(0)

彭蒙惠英语

2018年CRI Huawei launches P20 and P20 Pro smartphones

Play VideoHuawei's latest smartphone, boasting a three lens, AI-powered camera has been officially launched in France. The new P20 Pro device follows in the footsteps of competitors Apple and Samsung's latest releases by focusing on the camera's capa

发表于:2018-12-24 / 阅读(160) / 评论(0)

2018CRI中国国际广播电台

数学英语 26 What is the Golden Ratio

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

发表于:2019-01-02 / 阅读(269) / 评论(0)

数学英语

数学英语 14 How to Use the Golden Ratio

图片1 图片2 by Jason Marshall Despite many peoples assumption to the contrary, math is undeniably artistic. It takes a tremendous amount of creative muscle and artistry to devise mathematical solutions. And, as made evident by their frequent batt

发表于:2019-01-02 / 阅读(295) / 评论(0)

数学英语

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

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

电信专业英英词典A-2

Analog - Transmitting information that is characterized by continuously variable quantities (such as with AM or FM). This is different from digital transmission, which is characterized by discrete bit

发表于:2019-01-03 / 阅读(211) / 评论(0)

电信英语

马虎词汇教程 list2-3

analogous adj. 类似的 analogy n. 类推，类似 analysis n. 分析 anecdote n. 轶闻 angle n. 角度 anguish n. 极度的痛苦，苦闷；vi.使苦恼 animated adj. 有生气的，热烈的 annex

发表于:2019-01-11 / 阅读(199) / 评论(0)

英文语法词汇

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

发表于:2019-01-12 / 阅读(160) / 评论(0)

2011年VOA慢速英语(六)月

莎士比亚名言录

1.Shakespeare: The people may control their destiny, if we are under the control of others, that wrong not in destiny , but in us! （人们可支配自己的命运，若我们受制於人，那错不在命运，而在我们自己！） 2.The poor ma

发表于:2019-01-14 / 阅读(169) / 评论(0)

实用英语

生活大爆炸第三季第十集_3

You know, that one I got. 霍华德你和莱纳德说起我什么了吗 Howard, did you say something to Leonard about me? 什么意思 Uh, what do you mean? 他说我要是明天去看他的实验 He says if I go see his experiment tomorrow 可能你

发表于:2019-01-28 / 阅读(158) / 评论(0)

生活大爆炸第三季

音乐咖啡厅:Tamas Wells-For The Aperture

For The Aperture January And Further Travels In The Near East Raised your hands by the Nile and held your case to inquire of the tiles and strings born by those kings who fought their way for the aperture. Size and makes and bazaars where two in ten

发表于:2019-02-02 / 阅读(179) / 评论(0)

音乐咖啡厅

China cuts its reserve ratio again

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

发表于:2019-02-04 / 阅读(195) / 评论(0)

英语新闻

数码相机规格的中文翻译

CCD 分辨率 CCD Pixels 影像分辨率 Image Size ISO 感光度 Sensitivity 镜头性能 Lens 数字变焦 Digital Zoom 自动对焦 Autofocus 手动对焦 Manualfocus 一般对焦范围 General Shooting Distance 近拍对焦范围 Macro Shooting D

发表于:2019-02-04 / 阅读(190) / 评论(0)

实用英语

我国首颗高分辨率雷达遥感卫星"高分三号"成功发射

China launched a new high-resolution Synthetic Aperture Radar (SAR) imaging satellite from the Taiyuan Satellite Launch Center last Wednesday. 上周三，在太原卫星发射中心，我国发射了一颗新型高分辨率合成孔径雷达成像卫星

发表于:2019-02-05 / 阅读(165) / 评论(0)

英语新闻

雅思分类词汇：数码相机规格

CCD 分辨率 CCD Pixels 影像分辨率 Image Size ISO 感光度 Sensitivity 镜头性能 Lens 数字变焦 Digital Zoom 自动对焦 Autofocus 手动对焦 Manualfocus 一般对焦范围 General Sho

发表于:2019-02-06 / 阅读(164) / 评论(0)

英文语法词汇

英闻天下——331 China's Unbalanced Sex Ratio and its Ripple Effect

China's sex ratio is quite worrying nowadays. According to census data, China's sex ratio at birth was 108 males to every 100 females in the early 1980s, only slightly above the natural rate of 103 to 107. In 2000 the ratio was 116.9 males to 100 fem

发表于:2019-02-14 / 阅读(177) / 评论(0)

英闻天下

Russia launches rocket with Chinese satellite

MOSCOW, Nov. 25 (Xinhua) -- Russia's Proton-M carrier rocket was launched on Friday from the Baikonur space center in Kazakhstan with a Chinese communications satellite AsiaSat-7, according to Russia's Federal Space Agency Roscosmos. Roscosmos' live

发表于:2019-02-18 / 阅读(172) / 评论(0)

英语新闻

电影词汇（中英文对照）

aberration 像差 absolute film 绝对电影 abstract film 抽象电影 academy aperture 影艺学院片门 academy awards 奥斯卡金像奖 academy leader 影艺学院导片 academy mask 影艺学院遮片 academy of motion picture arts ＆ science 美国影艺学院（台）美国电影艺术和科

发表于:2019-02-18 / 阅读(148) / 评论(0)

英文语法词汇

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biological examination