Fluoroaniline is synthesized in two steps from p-nitrochlorobenzene and active potassium fluoride.
以对氯硝基苯和活性氟化钾等为原料,经二步法合成了对氟苯胺。
| 单词 | fluorides |
| 例句 |
英语例句库
Fluoroaniline is synthesized in two steps from p-nitrochlorobenzene and active potassium fluoride. 以对氯硝基苯和活性氟化钾等为原料,经二步法合成了对氟苯胺。 Quartz sand, activated carbon, removing iron and manganese filtration, deoxygenation, fluoride removal equipment. 石英砂、活性碳、过滤除铁除锰、除氧、除氟设备。 Objective To investigate clinical apearances, mechanism and prognosis of the cerebropathy of acute organic fluoride poisoning. 目的探讨急性有机氟中毒性脑病的临床表现、机理及其治疗效果。 TheyThe use a fluorid of fluoride to protect teeth is common in many parts of the world. 用氟化物保护牙齿被世界上很多国家所使用。 Ammonium bifluoride is an inorganic fluoride salt, whose consumption and output exceed tmi thousand of tons in China. 氟化氢铵是一种产量和用量都较大的无机氟盐，国内年产量在数万吨以上。 Aim To validate spectrum analysis of oxalyl fluoride neutral molecule(FCO)2 and study vibrational mode of the two configuration. 结果得到了与光谱分析一致的结果,草酰氟分子有平面反式和顺式2种构像。 Benzaldehyde and acetone used as materials,the benzylidene acetone is synthesized in the presence of potassium fluoride on alumina. 以苯甲醛和丙酮为原料,氟化钾氧化铝作催化剂合成了苄叉丙酮。 It was studied that the process conditions of treating fluobenzene wastewater with acidification, extraction, inorganic fluoride removal and electrocatalysis. 研究酸化+萃取+无机除氟+粒子群电催化氧化等物化技术处理氟苯生产废水的工艺条件。 T calculated from the characteristic temperatures shows that the thermal stability of fluorophosphate glass is better than fluoride glass. 数据显示氟磷酸盐玻璃的热稳定性比氟化物好。 In the atomic energy field and nuclear weapons production,it act as the raw material of uranic fluoride ,fuels and additives of rockets. 在原子能工业和核武器生产中，氟化氢是制造六氟铀的原料，也是生产火箭燃料和添加剂的原料。 The experiments suggest that the superfluorescence of fluoride glass fibr is a kind of low coherence and high performances light source with bright application prospect. 实验表明利用氟化物玻璃光纤有望获得性能优异的有应用前景的低相干度集成化光源。 Fluorine, one of the necessary trace elements of human beings is presented in the forms of inorganic and organic compounds in foods, such as sodium fluoride, silicon fluoride, and fluoroacetate etc. 氟是人体必需的微量元素之一,通常以各种多元无机态或有机态形式存在。 声明：以上例句、词性分类均由互联网资源自动生成，部分未经过人工审核，其表达内容亦不代表本软件的观点；若发现问题，欢迎向我们指正。
原声例句
当月 VOA Special English The water contains chemicals from the ground – including fluoride. 水中含有来自地下的化学物质，包括氟。 CNN 听力 2019年5月合集 The new standard would limit that to 0.7 milligrams of fluoride per liter. 新规定则将氟含量限值降低为每公升0.7毫克。 TED-Ed（视频版） In most toothpastes and many water supplies, we use tiny amounts of fluoride. 除了降低糖和淀粉的摄取量，在大多数的牙膏和饮用水中。 CNN 10 学生英语 2019年4月合集 Fluoride and teeth, compression and engines, X-rays and bone health or telegraph and wiring. 氟化物和牙齿，压缩和发动机，x 光和骨骼健康或电报和布线。 科学60秒 听力 2015年3月合集 But the researchers found something that works even better than fluoride: iron. 那就是铁。 VOA Special 2013年6月合集 Adding fluoride to the water makes teeth resistant to the bacteria that can cause tooth decay. 向水中添加氟能使牙齿能抵抗导致蛀牙的细菌。 时差N小时 Dentists can help by giving you a fluoride treatment, but you have to brush and floss regularly. 医生还可以为你做氟化物治疗（在蛀牙部位涂上高浓度的氟化物，令初期蛀坏的部分还原），但是，你必须定期洗牙，还要经常使用牙线清洁牙齿。 VOA Special 2015年9月合集 And they are quick to note that regular cleaning with fluoride toothpaste helps prevent cavities in the first place. 而且他们很快提醒大家，经常使用含氟牙膏刷牙有助于从最初就防止蛀牙。 CNN 听力 2019年5月合集 Currently the FDA allows bottled water with added fluoride to contain between 0.8 and 1.7 milligrams per liter. 目前，美国食品药品监督管理局允许加入瓶装水中的氟含量在每公升0.8至1.7毫克之间。 科学60秒 听力 2013年5月合集 They found that three different strains of cavity-causing bugs cling less tightly to enamel that's been rinsed with fluoride. 他们发现引起蛀牙的三种不同的菌株很少粘附于有氟化物加固的牙釉质表面。 科学60秒 听力 2013年5月合集 They find that fluoride treatment can loosen bacteria's grip on tooth enamel. The study is in the journal Langmuir. 他们发现氟处理能缓解牙釉质里细菌的压力。这项研究发表在《朗缪尔》期刊上。 Crash Course 综合篇 For instance, to maximize the hydrogen fluoride production by adding or removing some of the substances. 例如，通过添加或去除某些物质来最大限度地提高氟化氢的产量。 科学60秒 听力 2015年3月合集 And that's where the fluoride hangs out, helping to stave off an acid attack of the enamel—in other words, a cavity. 而氟化物就在这里聚集，帮忙延缓阻挡牙釉质的酸蚀—换句话说抑制蛀牙。 Engvid超级外教Ronnie-口语 They usually use a fluoride solution, and they scrape all the dirty stuff off your teeth. 他们通常使用氟化物溶液，将牙齿上的所有脏东西刮掉。 Crash Course 综合篇 Let's do this for hydrogen fluoride, or HF, an integral part of the process of refining gasoline. 让我们对氟化氢 (HF) 执行此操作， 它是精炼汽油过程的一个组成部分。 CNN 10 学生英语 2019年4月合集 Some scientists say the new FDA limits on bottled water with fluoride don't go far enough, that the limit should be lower. 一些科学家说，新的食品药品监督管理局对含氟瓶装水的限制还不够，限制应该更低。 大西洋月刊（文章版） But everything else will be true to life, including the molten fluoride salt that will flow through the device to cool it. 但其他的一切设备都是实在物质，包括流经设备进行冷却的氯化物熔盐。 潘潘 As a try, he smeared some fluid fluoride on the leaves, so the flowers would gloss fluorescence in the darkness! 作为一种尝试，他在花瓣上涂了些流质的氟化物。花儿会在黑暗里发出荧光！ CNN 10 学生英语 2019年4月合集 The U. S. Food and Drug Administration is considering a lower limit on the amount of fluoride that's allowed in bottled water. 美国食品和药物管理局正在考虑降低瓶装水中氟化物的允许含量。 CNN 10 学生英语 2019年4月合集 The American Dental Association, which supports adding fluoride to water, says the FDA's proposal would still work to prevent tooth decay. 支持向水中添加氟化物的美国牙科协会表示，FDA的建议仍然可以防止蛀牙。 |
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