[化] 高强聚乙烯纤维

[00:04.28]Reading COME AND EAT HEAR(1) [00:09.12]Wang Pengwei sat in his empty restaurant feelling very frustrated. [00:15.05]It had been a very strange morning. [00:17.92]Usually he got up early prepared his menu of mutton kebabs, [00:23.28]roast po

发表于:2018-12-13 / 阅读(170) / 评论(0) 分类 高中英语人教版必修

情景对话: Walter: Not hydrofluoric. 氢氟酸就不会。 Jesse: Why not? 为什么不会? 知识点笔记: hydrofluoric 氢氟酸 1. 确定辅音 相对来说,辅音变化最少。 单词中 h,dr,fl,r 和 c, 都没有特殊和奇怪

发表于:2018-12-18 / 阅读(36) / 评论(0) 分类 英国学生科学读本

Why Teflon Is Slippery Teflon is the trademark name for PTFE, a type of plastic. If you own any non stick cookware, then you probably use PTFE on a daily basis. You might not realize, as you fry your morning eggs, that PTFE is one of the most slipper

发表于:2019-01-22 / 阅读(217) / 评论(0) 分类 英语时差8,16

China's Tibet Autonomous Region is about to achieve a universal coverage of fibre-optical broadband service ahead of its schedule. As China further rolled out its universal broadband project, Tibet's broadband service is looking to reach 98% of admin

发表于:2019-02-14 / 阅读(85) / 评论(0) 分类 2018CRI中国国际广播电台

Yael: I have a question for you, Don. Paper or plastic? Don: Not that question again, Yael. Does anyone really care whether their groceries are put in plastic or paper bags? Y: Sure they do. In fact, the city of San Francisco has taken an interest in

发表于:2019-02-23 / 阅读(39) / 评论(0) 分类 英语时差8,16

Why Teflon Is Slippery? 1954年,法国工程师马克格雷瓜尔(Marc Gregoire)的妻子柯莱特(Colette)突发奇想,觉得丈夫用来涂在钓鱼线上防止打结的不粘材料特氟龙(Teflon)如果可以用在煎锅上,效果一定不错

发表于:2019-02-24 / 阅读(91) / 评论(0) 分类 英语听力文摘 English Digest
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