布拉格光栅

Bragg grating的用法和样例：

例句

Reflective spectral properties of sampled fiber Bragg grating is theoretically calculated by transfer matrix method.用传输矩阵法从理论上计算了取样光纤布拉格光栅的反射谱特性。
The effect of both amplitude and wavelength of the US wave on the reflectivity of a fiber Bragg grating has been analyzed.分析了该模型的有效作用条件及改变超声波波长及强度对光纤布拉格光栅频谱特性的影响。

美国学生历史第204期:The year 1863(4)

But he would not admit failure. 但是李将军不会认输。 Led by Pickett of Virginia, thirteen thousand men charged across the valley between the two armies directly at the Union center. 在弗吉尼亚人皮科特的带领下，1.3万士兵越过

发表于:2018-12-28 / 阅读(46) / 评论(0)

美国学生历史

美国学生历史第205期:The year 1863(5)

But Bragg was now greatly strengthened by soldiers from the Mississippi and by Longstreet's division from Lee's army in Virginia. 但是，此时的布拉格得到来自密西西比士兵的补充，也得到朗斯特里特从弗吉尼亚李将军那里

发表于:2018-12-28 / 阅读(32) / 评论(0)

美国学生历史

【英语语言学习】我们的睡眠质量

SCOTT SIMON, HOST: Millions of Americans recharge their phones and screens and laptops before they go to bed at night, but do they recharge themselves? Arianna Huffington says we're in the midst of a sleep deprivation crisis that creates anxiety as w

发表于:2018-12-28 / 阅读(78) / 评论(0)

英语语言学习

美联社一分钟新闻 2008-07-01

1. Coastal fog has brought hope of relief to firefighters battling Northern California's wildfires. More than 1,400 fires are still burning in that state. The fires were mostly started by lightning storms but quickly spread because of dry conditions

发表于:2019-01-07 / 阅读(109) / 评论(0)

美联社新闻一分钟2008年(七)月

CNN 2012-08-12

Good evening, everyone. We are coming to you from Oak Creek, Wisconsin, again tonight. There are significant new developments to tell you about in the wake of Sunday's shooting at the Sikh Temple. There is also here in Oak Creek a quiet, ongoing effo

发表于:2019-01-08 / 阅读(126) / 评论(0)

CNN2012年(八)月

经济学人103:最粗鲁的裁汰 The cruellest cut

Books and Arts; Book Review; Culture on television; The cruellest cut; 文艺；书评；电视上的艺术；最粗鲁的裁汰； The South Bank Show: Final Cut. By Melvyn Bragg. 《南岸秀：最终裁汰》Melvyn Bragg著。 The South Bank Show

发表于:2019-01-27 / 阅读(54) / 评论(0)

经济学人文艺系列

最新学习文章

热门学习文章

热门标签

英语听力 VOA标准英语 VOA 英语歌曲口语听力提高听力材料听力教程英语学习 NPR 英语口语 VOA慢速英语美国国家电台儿童英语 VOA英语小学英语 cnn VOA常速英语标准英语英文歌曲听电影学英语英语单词英文电影慢速英语 CRI 美联社新闻美国有线新闻加州分级澳洲新闻流行歌曲常速英语 ABC新闻快递疯狂英语英语读物听力棚车少年经济学人英语词汇商务英语 VOA双语新闻 BBC 中国电台大学英语 Treasures 加州语文 BBC英语英语听力网站 VOA英语教学词汇万花筒 SSS VOA英语听力 AP 新概念分级英语英语广播听力精选英语播客英文绘本 TED演讲赖世雄英语MP3 CCTV9英语新闻 lesson 英语新闻初中英语学英语英语语法历史上的今天英文广播剧英语游戏原版英语小说英语有声读物书虫英语牛津英语读物访谈录新闻一分钟考研英语英语每日在线听新闻 Us 新概念英语地道英语单词第二册自然百科高中英语 sports 实用英语 MP3听力辛沛沛 ESL英语第一册英语每日一句 unit 新东方 GRE 每日一词 BBC听力

学英语单词

arginine monohydrochloride