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

论述了乙烯基醚类合物的三种主要制备方法乙炔法、脱卤氢法和缩醛分解法。

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

可能被用于陶器,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学、辐射、学性能。

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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,研究了乙烯基正丁醚的本和溶液光聚合。

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An efficient palladium-cocatalyst system for vinylation of unsaturated carboxylic acid has been exploited,among which aliphatic amines(ALA)are firstly used as cocatalysts.

以醋酸钯/邻菲洛林/脂肪胺为催,丙烯酸和乙酸乙烯酯为原料,通过乙烯基交换反应制备丙烯酸乙烯酯。

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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合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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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先引入双键,再经过三酮合环制备乙烯基吡喃。

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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合成了阻燃型乙烯基酯树脂,其阻燃性能良好。

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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.

研究了由聚N-乙烯基甲酰胺的碱性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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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合成了11,12-二氰-9,10-二氢-9,10-亚乙烯基蒽(4),4分子4自身加成聚合制备了一种全新凹型四氮杂口卜啉结构合物。

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大风哥Wind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假袋子。

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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乙烯基等新产品。

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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.

他们在每个菱形电极中间贴上乙烯基贴纸,使电极彼此隔离。

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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,在这,我们为您准备口罩和乙烯基手套。

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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-乙烯基苯甲醚发挥用,继而防止形成蝗虫群。

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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.

这些坚固的购物袋由聚酯、乙烯基和其他硬塑料组成,而且已经在世界范围内使用。

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新版留学预备听说2级

We make most of our wallscapes on vinyl, a kind of strong plastic.

我们用乙烯基大部分墙面,乙烯基种坚固的塑料。

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2009 ESLPod

These were large black discs made out of vinyl.

这些是由乙烯基制成的黑色大圆盘。

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比尔·盖茨解惑

Speaking of vinyl, we've got a turntable here.

说到乙烯基, 我们这盘。

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明星们的购物狂欢

Limited addition, double bubblegum pink vinyl with gold splashes.

限量添加,双泡泡糖粉色乙烯基,带有金色飞溅。

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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,其中个最令人兴奋的进展是,找到能阻断4-乙烯基苯甲醚接收的化学物质。

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TED-Ed(视频版)

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

士兵们穿着新的塑料头盔衬和防水的乙烯基雨衣。

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TED-Ed(视频版)

Soon after came polyvinyl chloride, or vinyl, which was flexible yet hardy.

不久之后出现聚氯乙烯或乙烯基,它既柔韧又坚固。

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GQ — 明星们的10种必需品

I got it on vinyl recently and I'm obsessed with it.

我最近在乙烯基上得到它, 我对它很着迷。

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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,工人员将乙烯基包裹物放在汽车上并刮擦它们。

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朗文OCLM-01单词

Vinyl flooring is available in a wide range of designs.

【design】乙烯基塑胶地板有很多种图案可供选择。

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Crash Course 综合篇

Well the same thing goes for the ethene functional group, which is called a vinyl group.

同样的事情也适用于乙烯官能团, 它被称为乙烯基

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可汗学院Khan Academy Middle school physics - NGSS初中物理

So think about scratching vinyl or smudging a cassette tape, that's directly deforming the wave.

因此,考虑下划伤乙烯基或弄脏盒式磁带,这会直接使波形变形。

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VOA Special 2018年12月合集

In April, the city had too much waste from man-made products, such as plastic and vinyl.

4 月份,这座城市因塑料和乙烯基等人造产品产生太多垃圾。

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TED演讲(音频版) 2022年7月合集

There were gray rubber bucket seats bolted to the ground, white vinyl tiles, cinder block walls.

有螺栓固定在地上的灰色橡胶桶形座椅,白色乙烯基瓷砖,煤渣砖墙。

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