电子枪栅偏压电源

Decoding The Matrix Carrie-Anne Moss (“Trinity”) : It’s very rare that you actually get to 1) merge what you do with what you believe in. The Matrix: we had a life changing experience making it

发表于:2018-11-28 / 阅读(137) / 评论(0) 分类 疯狂英语2003年

我们曾经讲过几个和gun也就是枪炮的

发表于:2019-01-07 / 阅读(115) / 评论(0) 分类 美国习惯用语

Kenya Moves Full-Steam Ahead on Geothermal Production Kenya is expanding plans to become one of the worlds top geothermal power producers with the start of explorations at a site called Menengai. The government is also aiming to make geothermal Kenya

发表于:2019-01-13 / 阅读(40) / 评论(0) 分类 VOA标准英语2011年(十一月)

Science and Technology Intelligence testing Who are you calling bird-brained? 科技 智力测试 叫谁是笨蛋呢? An attempt is being made to devise a universal intelligence test 人类正尝试设计一种通用的智力测验 WHAT is the IQ o

发表于:2019-01-26 / 阅读(68) / 评论(0) 分类 经济学人科技系列

Background carrier 本底载流子 Background doping 本底掺杂 Backward 反向 Backward bias 反向偏置 Ballasting resistor 整流电阻 Ball bond 球形键合 Band 能带 Band gap 能带间隙 Ba

发表于:2019-02-05 / 阅读(58) / 评论(0) 分类 实用英语

STEVE INSKEEP, HOST: How is it that police officers sometimes shoot the wrong person? That question has grown more urgent after recent police killings of two black men. Emantic Bradford Jr. was killed while running from a shooting at an Alabama mall.

发表于:2019-02-21 / 阅读(54) / 评论(0) 分类 2018年NPR美国国家公共电台12月