[光] 光学系统

NPR 2010-04-11

In Warsaw, bells toll for fallen leaders on one of the darkest days in Polands history. President Lech Kaczynski, his wife, and dozens of civilian and defense chiefs were among 96 people killed today in a plane crash in Russia. Clusters of lit candle

发表于:2019-01-08 / 阅读(112) / 评论(0)

2010年NPR美国国家公共电台4月

VOA慢速英语2014 光纤测量南极冰川融化

AS IT IS 2014-10-22 Fiber Optic Cable Measures Antarctic Ice Melt 光纤测量南极冰川融化 Antarctica is covered with ice that extends past the land and floats on the sea in thick shelves. But those ice shelves are melting quickly. As they melt

发表于:2019-01-12 / 阅读(53) / 评论(0)

2014年VOA慢速英语(十)月

2018年CRI China's Optic Valley taking shape in Wuhan

Reporters on the Streaming down the Yangtze River tour have arrived in Hubei's capital, Wuhan. As part of their time there, the reporters have visited the East Lake Hi-tech Development Zone, a national innovation demonstration zone, which is also kno

发表于:2019-01-19 / 阅读(77) / 评论(0)

2018CRI中国国际广播电台

每秒400T! 中国光纤传输逆天突破再度刷新纪录!

Chinese firm FiberHome has developed a type of optic fiber that can transmit 400 terabytes of data per second, breaking the world record for the amount of data that can be transmitted on optic fibers, the company said. 中国公司烽火通信近日表

发表于:2019-02-07 / 阅读(53) / 评论(0)

英语新闻

Israeli researcher develops nano-scale gyroscope

JERUSALEM, May 8 (Xinhua) -- Israeli researcher Jacob (Koby) Scheuer, from the Tel Aviv University (TAU) School of Electrical Engineering, has developed a nano-scale gyroscope, the Ha'aretz daily reported Sunday. Scheuer developed a new optic-fiber n

发表于:2019-02-08 / 阅读(52) / 评论(0)

英语新闻

详解雅思阅读标题配对题的解题方法

标题配对题在雅思阅读考试中一直以来都占据重要地位，对于初涉雅思的学生来说尤其困难。虽然该题型在最近的考试中比重有所降低，但是由于其每个选项只能被选一次导致大片连环错的可

发表于:2019-02-20 / 阅读(79) / 评论(0)

雅思英语

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学英语单词

accountant,s responsibility

adsorption stripping

alkali fume

american institute of electrical engineers(aiee)

angular sensitivity of gravimeter