单词：fluorines
(fluorine 的复数) n. 氟
[化] 氟
[化] 氟
plural of fluorine
n. a nonmetallic univalent element belonging to the halogens; usually a yellow irritating toxic flammable gas; a powerful oxidizing agent; recovered from fluorite or cryolite or fluorapatite
n. a nonmetallic univalent element belonging to the halogens; usually a yellow irritating toxic flammable gas; a powerful oxidizing agent; recovered from fluorite or cryolite or fluorapatite
单词：fluorines 相关文章
A cluster of villages in China's Guizhou province has been plagued by an outbreak of disease that damages teeth and bones. Now, a new study by Chinese and American researchers puts the blame on polluted coal burned in home fireplaces. In small quanti
发表于:2019-01-14 / 阅读(161) / 评论(0)
VOA标准英语2010年(十)月
VOA标准英语2010年(十)月
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(311) / 评论(0)
英语时差8，16
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(173) / 评论(0)
英语听力文摘 English Digest
英语听力文摘 English Digest