音标：['pɔlii:n] ；

n. 聚烯
[化] 多烯; 多烯烃

polyene的用法和样例：

例句

用作名词(n.)

The exponent-type homologous linear rule of organic homologs was verified by using the electronic spectra of chain compounds of conjugated polyene.用共轭多烯链状化合物电子光谱的数据，对指数型同系线性规律进行验证。
This paper introduces characteriza tion and application of Natamycin -a polyene macrolide antirnycotics pr oduced by some strains of Streptomyces.介绍了链霉菌产生的多烯大环内酯类抗真菌剂纳他霉素的特性及其应用。

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SSS 2012-08-20

This is scientific American sixty seconds science. I am Amy Kraft. Got a minute? Sweat potatoes contains fiber, vitamin A and calcium, but the way that scientists think they can make them even more healthful is literally shocking. Researchers found t

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英语笑话（MP3+文本）

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Sorry,there is not text temporarily, Please help tingroom to look for it! 如果您能找到更好的听力原文，请发贴到听力原文收集区，您将会获得10到30积分的奖励! Thank you！

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医务英语

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皮肤附属器疾病寻常痤疮 acne vulgaris 脂溢性皮炎 seborrheic dermatitis 石棉状糠疹 pityriasis amiantacea 酒糟鼻 acne rosacea 激素性皮炎 hormonous dermatitis 口周皮炎 pe

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By Carol Pearson Washington 04 July 2007 Researchers have found that chocolate dark chocolate is good for your heart. They say it may stave off hardening of the arteries among smokers, and it has more antioxidants per gram than red wine, green tea or

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2006年NPR美国国家公共电台二月-Buying Back China's Lost Art Treasures

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发表于:2019-01-07 / 阅读(438) / 评论(0)

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妇产科常见临床表现-医学英语

全身症状发热 fever 潮热 hot flushes 乏力 easy fatigability 怕冷 sensation of chill 神经质 hervousness 头晕 vertigo 头痛 headache 心慌 palpitation 恶心 nausea 呕吐 emesis；vomiting 腹泻 diarrhea 腰痛 lumbago 麦氏点 Mc

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发表于:2019-01-17 / 阅读(463) / 评论(0)

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新西兰英语 424 Uni and polytech students in Christchurch

Students at the University of Canterbury had only one and a half days of classes before the earthquake on Feb 22nd. The university then closed for three weeks. A number of buildings had red stickers, including the two newest buildings Commerce and La

发表于:2019-01-27 / 阅读(424) / 评论(0)

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茶与牛奶一起喝有害健康

Tea has complex compounds called polyphenols which are believed to help the arteries to relax or dilate, thus enabling a smoother flow of blood. 茶中含有一种叫多酚的复杂混合物。这种物质据信能帮助放松或扩张动脉，从而使

发表于:2019-02-17 / 阅读(461) / 评论(0)

实用英语

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School starts again this week for most students. This is the start of the new school year. Children who turned five during the holidays will start school for the first time. Children starting a new school often feel nervous if they dont know anyone.

发表于:2019-02-19 / 阅读(421) / 评论(0)

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听力内容有不详尽之处啊，欢迎大家留言讨论，纠正。谢谢在线英语听力室http://www.tingroom.com Wed wines,it contains polyphenol, which have anti-accident properties.And those are known to accede lower our blood pressure b

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Every time i go to the grocery stores，i consider buying Organic vegetables because they are supposed to be healthier or something，but they are also moreexpensive. So is it worth it to pay more for the supposed health benefits? Well, it might be w

发表于:2019-03-06 / 阅读(441) / 评论(0)

英语时差8，16

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学英语单词

argento-pereylite (boleite)

arriola

as bare as the palm of one's hand