烯

However, the potential antioxidants of α-pinene,β-pinene, sabinene, and total monoterpene were initially increased, and then decreased.

但是，α-蒎烯、β-蒎烯、桧烯以及总单萜这些潜在的抗氧化物的含量却先增加，而后逐渐下降。

In recent papers [14,15] good activity and selectivity in the epoxidation of limonene, cyclohexene, 1-octene and pinene by anhydrous and aqueous H2O2 catalyzed by alumina were reported.

近年来，用氧化铝催化的，用无水的和含水的H2O2将莱烯、环己烯、1－辛烷和蒎烯环氧化中良好的活性和选择性已有报道。

It mainly empoison feed and cropper, such as wheat oat corn and so forth. It can arouse uterine portliness, metrohypertrophia, non-oestrus and abortion of female livestock, female symptom of boar.

玉米赤霉烯酮可引起雌性畜禽的阴道上皮角质化、子宫肥大、流产、假发情或不发情等类雌激素综合症，雄性动物接触玉米赤霉烯酮后出现"雌性化"症状，此外，玉米赤霉烯酮还具有免疫毒性和潜在的致癌性，对动物和人类健康的威胁十分巨大。

Contained acrylamide propenyl disulfide and II and II propenyl disulfide and cyclic sulfide Alliin are higher than white garlic more than doubled.

所含丙烯二硫化物和二丙烯基二硫化物和二丙烯基硫化物及环蒜氨酸都高出白皮大蒜一倍以上。

Analysis of the material change, garlic cells bioactive aliphatic thio cysteine sulfoxide and thiosulfate propenyl cysteine sulfoxide sulfur compounds in garlic, such as the role of enzymes, the generation of thiobarbituric acid sub - ester, propylene-based thiosulfinates, allyl thiosulfinates as garlic pigment precursor substances, and further changes occurred in the green garlic.

从物质变化分析，大蒜细胞中的生物活性物质硫代脂肪族半胱氨酸亚砜和硫代丙烯基半胱氨酸亚砜等含硫化合物在蒜酶的作用下，生成硫代亚磺酸酯、丙烯基硫代亚磺酸酯、烯丙基硫代亚磺酸酯，作为大蒜色素物质的前体，进一步发生大蒜绿变。

In this thesis, three different chain length hybrid monomers, containing acrylate and propenyl ether group, was synthesized by three-step reaction through 1.3-propanediol, 1.4-butanediol, 1.6-hexanediol, allyl bromide and acryloyl chloride.

本文以1.3-丙二醇、1.4-丁二醇、1.6-己二醇、烯丙基溴及丙烯酰氯为主要原料，通过三步反应合成了三种不同链长的丙烯酸酯-丙烯基醚杂化单体。

N,N-dimethyl-N'-(2-trifluorometyl-1-pentafluoroethyl) perfluoro propenyl propane diamine and N,N-dimethyl N'-(2-trifluorometyl-1-pentafluoroethyl) perfluoro propene propane diamine were prepared by the reaction of hexafluoropropene dimer and N,N-dimethyl propanediamine in the molar ratio 1:1.0 at about 35℃for 8h, and the structures of I were identified by IR and NMR spectra.

本文以六氟丙烯二聚体和N，N-二甲基丙二胺为主要原料合成了两种含氟中间体叔胺——N，N-二甲基-N'-(2-三氟甲基-1-五氟乙基)全氟丙烯基丙二胺和N，N-二甲基-N'-(2-三氟甲基-1-五氟乙基)全氟烯丙基丙二胺，用薄层色谱和柱色谱等方法对产品进行分离提纯，并运用红外光谱和核磁共振等分析手段对其结构进行了表征。

This paper includes three parts:preparation of fullerene,the theoretical design and synthesis of novel pyrrolidine nitro-derivatives,the investigation of the application of fullerene and its derivatives in high energetic explosives and nitramine modified double base propellant.

本论文主要包括三部分：富勒烯原材料制备研究，新型硝基富勒烯吡咯烷衍生物的理论设计与合成研究，富勒烯及其衍生物在高能炸药和硝胺改性双基推进剂中的应用研究。

Retene, simonellite, pimarene and long side chain indanes were identified in algal pyrolysates for the first time.

首次在藻类热模拟产物中检测到惹烯、西蒙内利烯、海松烯及长侧链二氢化茚类化合物。

In extracts of source rocks of shahejie 1 group of Gulan low-lying abundant retene, simonellite and cadalene were detected. Their main origin should be lower organisms like algae.

在孤南洼陷沙一段烃源岩抽提物中检测到了较为丰富的惹烯、西蒙内利烯及卡达烯，其主要来源应是藻类等低等植物。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。