n. 光产生器；半导体发光器

Bladeless Wind Generator Safe for Birds

Bladeless Wind Generator Safe for Birds Wind turbines are tall structures with large blades used to produce electricity. They are useful sources of low-cost, renewable energy. But they can also be deadly to birds and bats. The turbines large blades t

发表于:2019-01-12 / 阅读(73) / 评论(0)

2015年VOA慢速英语(七)月

科学美国人60秒 SSS Photonic Chip Could Strengthen Smartphone Encryption

Random numbers are hugely important for modern computing. They're used to encrypt credit card numbers and emails. To inject randomness into online gaming. And to simulate super complex phenomena, like protein folding or nuclear fission. But here's th

发表于:2019-01-20 / 阅读(38) / 评论(0)

2016年Scientific American(九)月

Photo of my wife　我老婆的照片

Photo of my wife 我老婆的照片 A businessman enters a tavern, sits down at the bar, and orders a double martini on the rocks. After he finishes the drink, he peeks inside his shirt pocket, and then orders the bartender to prepare another double

发表于:2019-02-08 / 阅读(89) / 评论(0)

趣味英语

英语博客：Designing a special photo for the app.

I love to use my laptop, to play around with different programs, to surf the web, and to edit photos. Today I have been doing that for hours. Now that my app has come out in iTunes, I have been trying to design a really good photo for it. The existin

发表于:2019-02-17 / 阅读(61) / 评论(0)

英语博客 A cup of English

每日一词【713】photo op

今天我们要学的词是photo op. Photo op是photo opportunity的简称，意思是为做宣传而专门安排的媒体拍照机会。The meeting between the two Presidents was followed by a photo op, 两位总统会面后接受媒体拍照。一架

发表于:2019-02-17 / 阅读(73) / 评论(0)

英语每日一词

学个词Learn a Word 第713期 photo op.

发表于:2019-02-19 / 阅读(63) / 评论(0)

英语单词荟萃

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学英语单词

a-go-go

air heating

amphibious vehicle launching areas

artistry of leadership

atomic number 76

automatic compression molding