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.)
  1. 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。
  2. 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。

情景对话: Walter: Not hydrofluoric. 氢氟酸就不会。 Jesse: Why not? 为什么不会? 知识点笔记: hydrofluoric 氢氟酸 1. 确定辅音 相对来说,辅音变化最少。 单词中 h,dr,fl,r 和 c, 都没有特殊和奇怪

发表于:2018-12-18 / 阅读(136) / 评论(0) 分类 英国学生科学读本

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

发表于:2018-12-24 / 阅读(130) / 评论(0) 分类 Scientific American(八)月

the meaning of politics Guess what the true meaning of politics is. Poli is a Latin term meaning many and tics are bloodsucking creatures. Notes: 1. Guess what the true meaning of politics is. 猜猜看政治的真正含义是什么? 2. Poli is a L

发表于:2018-12-26 / 阅读(133) / 评论(0) 分类 英语笑话(MP3+文本)

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!

发表于:2018-12-30 / 阅读(180) / 评论(0) 分类 英文魔法师字源大挪移

The Tertiary Education Commission (the TEC) announced the funding for polytechs and universities for the next 3 years. The TEC is the government organisation responsible for tertiary institutions like polytechs and universities so this is government

发表于:2018-12-31 / 阅读(157) / 评论(0) 分类 新西兰英语

Amazon Go: First Store with No Money or Lines The American company Amazon has launched a store that does not require you to stand in a checkout line or someone to process your payment. 美国亚马逊公司推出了一家无需排队等待收银员结账

发表于:2019-01-03 / 阅读(138) / 评论(0) 分类 2018年VOA慢速英语(一)月

抗病毒药 三氮核苷唑 Ribavirin` 病毒唑, 利巴韦林, 尼斯可, VIRAZOLE 无环鸟苷 Acyclovir 阿昔洛韦, Zovirax, 永信克疱, 丽珠克毒星, 舒维疗 更昔洛韦 Ganciclovir 丽科

发表于:2019-01-03 / 阅读(198) / 评论(0) 分类 医务英语

硝咪唑类 甲硝唑 Metronidazole 甲硝羟乙唑, 灭滴灵, 咪唑呢达, 灭滴唑, 佳尔钠FLAGYL, Klion, Arilin 替硝唑 Tinidazole 服净, Fasigyn 氯霉素类 氯霉素 Chloramphenicol CHL

发表于:2019-01-03 / 阅读(161) / 评论(0) 分类 医务英语

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

发表于:2019-01-03 / 阅读(143) / 评论(0) 分类 医务英语

d-Pinoresinoldi-O-b-glucopyranoside 松脂酚双吡喃葡萄糖甙 d-Pinoresinol d-松脂素 Piperitone 胡椒酮 Plantaginin 车前甙 Platycodin A, C, D 桔梗皂甙A,C,D Podophyllotoxin 鬼臼毒

发表于:2019-01-03 / 阅读(216) / 评论(0) 分类 医务英语

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

发表于:2019-01-06 / 阅读(170) / 评论(0) 分类 2007年VOA标准英语(七月)

Steve Inskeep: Many Chinese businesses and collectors are using their new wealth to buy back some of the country's history. Treasures plundered in wars or stolen by tomb robbers. One company has made this its specialty. The Poly corporation, which s

发表于:2019-01-07 / 阅读(226) / 评论(0) 分类 2006年NPR美国国家公共电台

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

发表于:2019-01-08 / 阅读(192) / 评论(0) 分类 医学英语

AUDIE CORNISH, HOST: This is what pillow talk on television sounds like these days. (SOUNDBITE OF TV SHOW, I LOVE DICK) KATHRYN HAHN: (As Chris) Why do you think that we are - have been monogamous all these years when we don't even believe in it? Lik

发表于:2019-01-17 / 阅读(196) / 评论(0) 分类 2017年NPR美国国家公共电台5月

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(180) / 评论(0) 分类 新西兰英语

SCIENCE REPORT – January 9, 2002: Red Wine and Heart Disease By George Grow This is the VOA Special English SCIENCE REPORT. British scientists may have discovered the reason why red wine appears to

发表于:2019-01-30 / 阅读(180) / 评论(0) 分类 科技之光

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(199) / 评论(0) 分类 实用英语

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(179) / 评论(0) 分类 新西兰英语

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

发表于:2019-02-28 / 阅读(173) / 评论(0) 分类 访谈录2012年

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(183) / 评论(0) 分类 英语时差8,16
学英语单词
adenomatous goiter
alveolitoid
ancon sheep
annotated preliminary list
antimagnetic bearing
architecture design
artbridge
aseptic osteonecrosis
audio capture
Authorized Participant
available storage structure
bandage-fixing therapy
Beyerinck's reaction
Bezdan
blaa
breastier
Cagan's adaptive expectations model
cause remote
classical orthogonal signal
clerodendrin
coefficient of performance (of refrigeration)
composite contact metal
concentrate upgrading plant
conjugates system
converter control
deauvage
effective test/service end date/time
Ekshärad
estaba
explosion suppression system
extractivism
exultancies
fedges
fm/fsk demodulator
gallic hydroxide
gasfurnace
general mortgage
generalization association
gigohms
gloxinia
go into the army
graphitized packing
ground resistance
group closure of a subset
Gyro gasoline
hexethal
holly oak
i-fetred
ibony
ichthyotherapy
infaunal organism
kajillions
kargel
leucine-enkephalin
linkage grab
liquefied gas pump
look down on someone
Los Remedios
main steam bypass capacity
mauremys mutica
maximum gradient
Mieres
militated against
mizzensail
multiplication by series
multitracks
n-dimensional homology manifold
non-constant-velocity universal joint
north-side
optical scattering by nonhomogeneous media
optimized iteration strategy
overplaid
perkal
polygenic trait
promotion management
pseudo-isomerism
rarest
Recey-sur-Ource
relative coverage ratio
right to derive benefit from land
sadccs
santano
school-house
seismic surveillance
silhouetting
single-sheave block
situation assessment
Sophora dunnii
spectrum of ring
stallimycin
standing train protection
technology-sharing
tethyan geosyncline
time slice interval
tooth-and-pick
torque synchro receiver
transinformation rate
veggiedogs
voltage recovery rate
washable water paint
wate research
wearisomeness