学生领导的
(student-led 的复数)

SSS 2010-08-30

This is Scientific American's 60-Second Science. I'm Christopher Intagliata. Got a minute? Engineers are always plugging away to get better energy efficiency out of our products -- like cars that guzzle less gas or light bulbs that burn brighter on f

发表于:2018-12-24 / 阅读(47) / 评论(0)

Scientific American(八)月

60秒科学:仅仅使用节能灯还不能保证绿色生活

Engineers are always plugging away to get better energy efficiency out of our products -- like cars that guzzle less gas or light bulbs that burn brighter on fewer watts. But even if we replaced all today's bulbs with energy-sipping LEDs, the world m

发表于:2019-01-02 / 阅读(78) / 评论(0)

60秒科学

经济学人23:高速而廉价的光学Wi-Fi即将问世

Science and Technolgy. 科技。 Visible-light communication. 可见光通信。 Tripping the light fantastic. 与光共舞。 A fast and cheap optical version of Wi-Fi is coming. 一个高速而廉价的光学Wi-Fi即将问世。 AMONG the many new

发表于:2019-01-26 / 阅读(58) / 评论(0)

经济学人科技系列

EDUCATION REPORT - Foreign Student Series 6: Student and Exc

EDUCATION REPORT - Foreign Student Series #6: Student and Exchange Visitor Information System (SEVIS) By Nancy Steinbach Broadcast: Thursday, October 07, 2004 This is Gwen Outen with the VOA Special E

发表于:2019-01-30 / 阅读(62) / 评论(0)

教育与新闻

经济学人221:可见光通信与光共舞

Science and technology 科学技术 Visible-light communication 可见光通信 Tripping the light fantastic 与光共舞 A fast and cheap optical version of Wi-Fi is coming 一个高速而廉价的光学Wi-Fi即将问世 AMONG the many new gadgets u

发表于:2019-02-06 / 阅读(62) / 评论(0)

经济学人科技系列

U.S. student arrested over shooting threat

HOUSTON, Dec. 14 (Xinhua) -- A student was arrested Friday for allegedly threatening to shoot inside a school in the U.S. state of Oklahoma, local media reported. Police arrested Sammy Chavez, 18, in the early morning at a residence in west Bartlesvi

发表于:2019-02-18 / 阅读(38) / 评论(0)

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accuracy of measurement tool

Air Cargo and Aircraft Ground Equipment Subcommittee

air combat

an y?eh

anti-development

better distribution of investment

blunder upon sth.

bridging amplifier

bring you down

busy hour call attempts

by pass vavle steam pipe