标签：纤维 相关文章
Up in the Sierra Madre Mountains, in a bowl-shaped valley, is the capital of Mexico. 在马德雷山脉上有一个碗形的山谷，里面坐落着墨西哥的首都， It is called Mexico City, so you dont have to learn a new name. 叫做墨西哥城
美国学生世界地理教材
National Agriculture Day is a day to appreciate and celebrate the work of farmers and the agricultural industry. Perhaps few of us stop and think about the vital work that takes place every day by food producers. Without them, there would be no produ
世界节假日博览
M.I.T. researchers have developed a piezoelectric fiber that would react to electric currents and have the potential to record or produce audio. Clothing is so yesterday. I mean, really, what can it do? It cant pick up sound, or beep at us if somethi
60秒科学
UNESCO Recognizes Panama's Hats The United Nations Educational, Scientific and Cultural Organization (UNESCO) has recognized the artisans of Panama for their woven hats. 联合国教科文组织（UNESCO）认可了巴拿马手工艺人编制的草帽。
2018年VOA慢速英语(一)月
Multimode Optical Fiber(S) Multimode fibers, with much wider cores than single mode fibers, allow light to enter at various angles, and reflect (bounce off of) core-clad boundaries as electromagnetic
电信英语
New England is looking to get back on its feet following the huge winter storm. Flights are set to resume on Wednesday morning at Boston Longan airport even after about 2 feet of snow fell. Amtrak trains are also set to roll again. Indonesian search
美联社新闻一分钟2015(二)月
在考研英语的复习中，虽然考研英语语法在研究生英语考试中不再单独考察，但是考研英语语法知识贯穿在整个考研英语考卷中。完型填空题会直接考查考研英语语法知识;考研英语阅读理解题
考研英语
Consider starch and fiber, both polysaccharides, both derived from plants, 拿淀粉和纤维来说，它们都是多糖，都是从植物中获得的， both composed of hundreds to thousands of monosaccharides joined together, 也都由成百上千个
TED演讲教育篇
And what about font size and type? 那字的大小和字体呢？ The earliest movable type pieces consisted of reversed letters cast in relief on the ends of lead alloy stocks. 最早的活字是在铅铝坯料的一端铸造凸出的反字。 They
TED演讲教育篇
During a research experiment a marine biologist placed a shark into a large holding tank and then released several small bait fish into the tank. 在一个研究实验中，一个海洋生物学家把一条鲨鱼放进一个大的水箱中，然后投放
英语美文
小编在此与大家分享GRE阅读制胜法则，帮助各位考生在应对GRE阅读材料时更加胸有成竹。 GRE文章是论证性文字，不是说明性文字，也不是叙述性文字。这种以论证为特点的文字，及于GRE阅读文
GRE英语
一、习语成语和词汇中的误区 习语成语中的误区 英语中有丰富的习语成语，增强了语言表达能力。其中大部分可以直译，或用汉语中相应的习语套用。例如：the open door policy开放政策，the co
英语笔译
Animal leather alternatives like Polyurethane and PVC leather may have solved the fashion industry's animal cruelty problem, but they are not the most environmentally friendly solutions. Pi?atex a new leather-like material made from pineapple leaves
阅读空间
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
英语新闻
1. Police say a domestic dispute led to deadly gunfire at a fiber optics company in Albuquerque, New Mexico. They say a gunman opened fire, killing two people and wounding four others before turning the gun on himself. 2. Undersea robots have been lo
美联社新闻一分钟2010(七月)
Try and use some of this water. 试着利用这些水 And if you're caught in a forest fire, 如果你被困森林大火 there's some really simple, basic things you can do just to protect yourself. 你可以做些最基本的防护措施 来保护你自
荒野求生
GRE文章是论证性文字，最为重要的就是对于GRE单词含义的准确把握。这种以论证为特点的文字，及于GRE阅读文章的各个层面：篇章段落句子单 词。篇章由多个论点组成，论点由作为论据的句子
GRE英语
首先我必须要知道，一篇文章中不认识的单词占托福阅读词汇总量的比例只要控制在8%以内，是绝对不会影响到我们对全文任何观点的理解的。基于这一点，我们大家大可不必因为遇到了几个我
GRE英语
GRE阅读猜词的正确方法。虽然我们已经提前进行了GRE词汇的背诵，但是也不能保证在新GRE阅读中遇到的所有单词都认识，所以GRE阅读词汇会有一些陌生单词现象，这时候就需要哦我们利用GRE阅
GRE英语
Myth 1： 笔者认为从上下文中猜出单词的释义是不现实的。例如有这样一句话Supernova is a massive star which undergoes gravitational collapse. 我们是不可能从上下文中猜出supernova的释义超新星的。而我们真
GRE英语