标签：发生器发展史 相关文章

豆知识 2011-07-24&07-30 无线信号发生器的发展史

It starts with a blip, a beep, a noise, a pattern, a signal. It could be anything - ink on paper, machine data, or even the words flowing through your minds right now. Signal generators play an important role in testing devices we use every day. The

发表于:2018-12-11 / 阅读(77) / 评论(0) 分类 英语解说豆知识2011年

名人励志英语演讲 第50期:永不疲惫,永不气馁,永不完竭(1)

President Clinton, distinguished guests, and my fellow citizens, the peaceful transfer of authority is rare in history, yet common in our country. With a simple oath, we affirm old traditions and make new beginnings. 尊敬的克林顿总统、各位嘉

发表于:2018-12-30 / 阅读(73) / 评论(0) 分类 名人励志英语演讲

托福听力背景知识：电影发展史

历史 电影的发展和摄影技术的发展有着非常密切的关系，关于摄影的发展在之前的文章中已有涉及，在此就不赘述了。在1878年，当人们掌握了捕捉图像的技术后，据说有两个朋友为了打赌证明

发表于:2019-01-08 / 阅读(49) / 评论(0) 分类 托福英语

CCTV9英语新闻：电力恢复到76%的家庭，道路重新开放

Power has been restored to nearly eighty percent of households in the epicenter of the quake. The quake cut off electricity in ten townships in Ludian County. By noon Tuesday, the Yunnan provincial electricity company have brought three 35-kilovolt t

发表于:2019-02-04 / 阅读(104) / 评论(0) 分类 CCTV9英语新闻2014年08月

American Airlines plane makes emergency landing in New Mexico

HOUSTON, Jan. 11 (Xinhua) -- An American Airlines plane from Las Vegas, Nevada, and bound for Dallas, a city in the U.S. state of Texas, made an emergency landing Friday in the U.S. state of New Mexico after a problem was found with one of its genera

发表于:2019-02-13 / 阅读(63) / 评论(0) 分类 英语新闻

TED演讲 没错,我制造了一个核聚变发生器(2)

So this previous year, I won the Intel International Science and Engineering Fair. 因此上一年，我赢下了国际科学以及工程大会活动的第一名。 I developed a detector that replaces the current detectors that Homeland Security has

发表于:2019-02-21 / 阅读(56) / 评论(0) 分类 TED演讲教育篇

TED演讲 没错,我制造了一个核聚变发生器(1)

So my name is Taylor Wilson. I am 17 years old and I am a nuclear physicist, which may be a little hard to believe, but I am. 我叫泰勒 威尔逊，今年17岁，我是一名核物理学家，可能你们很难相信，但我确实是。 And I wou

发表于:2019-02-21 / 阅读(60) / 评论(0) 分类 TED演讲教育篇

留美老师带你每日说英文 第1098期:女人的口袋发展史

台湾籍旅美老师今天交给我们的句子是： From the 17th century through the 19th century women's pockets were these large detachable things that tied onto a woman's waist underneath her skirts. There were unfashionable, they were not ver

发表于:2019-02-25 / 阅读(68) / 评论(0) 分类 留美老师带你每日说英文
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