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This paper discussed three methods of producting vinyl etherspreparation from acetylene,dehydrohalogenation and acetals.

论述了乙烯基物的三种主要制备方法乙炔法、脱卤氢法和缩醛热分解法。

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Dicyano 9,10 dihydro 9,10 ethenoanthracene(4) was synthesized by addition reation of acetylenedinitrile and anthracene. Concave tetrazaporphyrin has been obtained from the four molecules of 4.

乙炔二氰与蒽环加成反应成了11,12-二氰-9,10-二氢-9,10-亚乙烯基蒽(4),4分子4自身加成聚制备了一种全新凹型四氮杂口卜啉结构物。

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Effects of polyvinylamine prepared by basic hydrolysis of poly(N-vinylformamide) on paper strength, drainage and retention of reed pulp and wheat straw pulp were investigated.

了由聚N-乙烯基甲酰胺的碱水解得到的聚乙烯胺在芦苇浆和麦草浆造纸中对纸张的增强、助滤和助留作用。

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Flame retardant vinyl ester resin using tetrabromo bisphenol A, epichlorohydrin, acrylic acid as raw materials was also synthesized, Its flame retardant property was excellent.

用四溴双酚A、环氧氯丙烷和丙烯酸为原料成了阻燃型乙烯基酯树脂,其阻燃好。

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Ethyl phenylacrylate intermediate bringing a double bond was introduced first,which is subsequently transformed into triketone and then DCM was obtained with high purity.

采用具有烯烃骨架的β-苯基丙烯酸酯为中间体先引入双键,再经过三酮环制备乙烯基吡喃。

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A novel family of ester acetal molecular glass materials has been created by the reaction between monocarboxylic acid and divinyl ethers.

通过一元羧酸和二乙烯基醚的反应,我们得到了一种新颖的酯缩醛结构分子玻璃。

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Thirteen new compounds of the alkyl styryl indoline spirobenzopyrans were synthesized from the condensation of 2-methylene indoline with the designed salicylaldehyde.

利用2-亚甲基吲哚啉和取代水杨醛缩得到十三种新的烷基苯乙烯基吲哚啉螺苯并吡喃。

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The bulk and solution photopolymerization of vinyl butyl ether were studied using diph-enyl-4-thiophenoxyphenyl sulfonium salt (DPTS) as photoinitiator.

以二苯基-4-苯硫基代苯基硫鎓盐(DPTS)为光引发剂,研乙烯基正丁醚的本体和溶液光聚

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Lead is also used in some seramic (ceramic) and vinol (vinyl) products, candles, hair colorings and other goods.

铅也可被用于陶器,乙烯基产品,蜡烛,染发剂和其他产品。

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Structure, mechanics, electricity, calorifics, radialization and chemicalproperties are reviewed for polyperfluoroethylene-propylene and tetrafluoroethylene perfluoroalkyl vinyl ether copolymer.

分别阐述了聚全氟乙丙烯和四氟乙烯全氟代烷基乙烯基醚共聚物的结构和力学热学、辐射、

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Vox 观点

Companies that used to focus on linoleum, also pivoted to new options, like vinyl.

过去专注于油毡的公司也转向了乙烯基等新产品。

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大风哥带你看电影学英语

So Schultz will create fake ones out of vinyl.

所以舒尔茨用乙烯基做了假袋子。

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连线杂志

On the backend, they normally have a vinyl top, at least in the States.

后端,他们通常有乙烯基顶部,至少美国是样。

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TED-Ed(视频版)2020年9月合集

Soldiers wore new plastic helmet liners and water-resistant vinyl raincoats.

军人头戴有塑胶衬的头盔, 身穿防水的乙烯基雨衣。

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VOA慢速英语_科技

She said one of the most exciting developments would be finding a chemical that could block the reception of 4VA.

她表示,其中令人兴奋的进展是,找到能阻断4-乙烯基苯甲醚接收的化学物质。

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科学60秒-科学美国人 2019年2月合集

They affixed a vinyl sticker in the middle of each diamond to insulate the electrodes from one another.

他们菱形电极中间贴上乙烯基贴纸,使电极彼此离。

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双语版 TED-Ed 演讲精选

These sturdy shopping bags consist of polyester, vinyl, and other tough plastics, and are already used worldwide.

些坚固的购物袋由聚酯、乙烯基和其他硬塑料组成,而且已经世界范围内使用。

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VOA常速英语_科技

And due to increasing COVID rates, in here, we have the masks and vinyl gloves for you.

由于新冠肺炎感染率不断上升,,我们为您准备了口罩和乙烯基手套。

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VOA慢速英语_科技

Kang said a chemical could be developed to block 4VA 's effects to prevent swarming.

康乐表示,可以研发出种化学物质来阻止4-乙烯基苯甲醚发挥作用,继而防止形成蝗虫群。

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2009 ESLPod

These were large black discs made out of vinyl.

些是用乙烯基制成的大黑盘。

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透视百科影视类

First, the crew put vinyl wraps on the car and scratched them up.

首先,工作人员给车贴上了乙烯基覆膜,然后将其刮花。

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But Why: A Podcast for Curious Kids

If you've ever heard of PVC pipes, those are vinyl.

如果你曾听说过PVC管,那就是乙烯基材料。

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Planet Money

And now there is more capacity to make vinyl than there is demand for it.

如今,生产乙烯基的产能超过了市场需求。

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Sleep With Me

All ponchos are waterproof, and they're made from vinyl.

所有斗篷均具有防水功能,并采用乙烯基材料制作。

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The New Yorker: The Writer's Voice - New Fiction from The New Yorker

His mother's body is on a gurney zipped up in a black vinyl body bag.

他母亲的遗体被安置张轮床上,裹黑色乙烯基材质的尸袋,拉链紧紧闭合。

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变得智慧

It's made of a bunch of metal and vinyl and some sensors.

它由堆金属和乙烯基以及些传感器制成。

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冷知识百科大全

Getting the same exact color to show up both in the real world and on screens, not to mention on a variety of materials like aluminum drink cans, cardboard packaging, vinyl billboards, plastic doodads, and so on, is tricky.

现实世界和屏幕上显示完全相同的颜色,更不用说各种材料上,如铝制饮料罐、纸质包装、乙烯基广告牌、塑料小玩意等,是非常棘手的。

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The Adam and Dr. Drew Show

So there's a lot of real hardcore stuff, and I guess, for me, the first time I cut Let's say a vinyl-coated piece of wood, like what they would use in a custom closet, the white stuff, you know.

所以有很多非常专业的内容,对我来说,第次切割时,比如说块涂了乙烯基的木头,就像定制衣柜用的那种白色材料,你知道的。

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2014 English Cafe

George was apparently looking at an article about someone who was listening to old records, old records made of vinyl, which were – if you're young – were black, round discs that you could play your music from.

乔治显然篇文章, 文章讲的是有人听老唱片,那种由乙烯基制成的老唱片——如果你还年轻的话——就是黑色的圆形碟片,你可以从上面播放音乐。

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The Current

It's got your red vinyl booths, photos of celebrity visitors on the wall, and it serves truly gigantic portions, including the GMC breakfast special, three eggs, bacon or ham, home fries, and toast.

有红色乙烯基的卡座,墙上挂着名人访客的照片,供应的分量确实巨大,包括GMC早餐特供——三鸡蛋、培根或火腿、家常薯条和吐司。

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