Because of the effect of catabolite repression and synergistic mechanism between pructs, the degradation of succinonitrile is promoted while the degradation of alkanes is inhibited in the mixed system of culture medium.

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Gasolinecontained 67.8% aromatic hydrocarbons, 21.47% olefins and a small quantityof alkanes and cycloparaffin hydrocarbons. The enlarging study on blending feed of vegetable oil and petroleumfraction was performed in a Two-Stage Riser.

通過優(yōu)化各種因素无码免费专区，植物油的轉(zhuǎn)化率達到81.18%，丙烯產(chǎn)率達到19.52%全网免费黄色网站在线观看；汽油的產(chǎn)率為30.58%a级三级黄片，其中含有67.87%的芳烴、21.47%的烯烴日韩网站免费观看，以及少量的烷烴和環(huán)烷烴在线一区不卡播放，其研究法辛烷值為90.3，抗爆指數(shù)為83.9AAAAA级黄色片。

After the decarboxylation process the alkane produced can be degraded or "cracked"=to lower carbon number alkanes.

脫羧基作用后www.4455永久，所形成的烷烴能被降解或"裂解"成低碳數(shù)烷烴。

Based on distance matrix and branch vertex of atoms in a molecula,a new topological index Hz has been established to be used in researching physical and chemical properties of alkanes .

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At the same time,the I_ calculated according to ven den Dool's definition will be of poor comparability since retention temp. TR and carbon number n of n-alkanes is not linearly correlated, especially when ...

根據(jù)恒溫與線性程升的保留值方程建立的各種柱溫模式下的保留指數(shù)相互轉(zhuǎn)換方法能準確快速地預(yù)測不同柱溫模式下的保留指數(shù)久草中文av在线，以此來建立通用數(shù)據(jù)庫以適應(yīng)不同的分析條件的需要，特別是從2種升溫模式出發(fā)預(yù)測其它柱溫模式下的保留值能更方便地對復(fù)雜樣品的分離條件進行優(yōu)化亚洲伊人成无码91。

The partial oxidation of ethane to ethene and hydrocarbon oxygenates is one of the most difficult processes in partial oxidation of alkanes.

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The quantitative relation model was established between the fundamental or sum frequency and properties of straight-chain alkanes.

在此基礎(chǔ)上建立了直鏈烷烴的物化性能與基頻和總頻之間的定量相關(guān)模型。

The results show that: 27 compounds were identified at 600℃, and most of them were alkenes, alkanes, acids, alcohols and phenolic substances; geraniol was identified, and its relative content was 3.6, which shows that geranyl 8-methoxycoumarin-3-carboxylic acid ester can release a certain amount of geraniol at smoke temperature; geranyl 8-methoxycoumarin-3-carboxylic acid ester can improve and modify the flavor, enhance the notes of sweet aroma and bean aroma, and reduce the biting taste of cigarette smoke.

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Grignard reagent with water, the reaction can be pure alkanes.

格氏試劑與水反應(yīng)后可以得到純的烷烴。

Surface tensions of several pure normal alkanes were calculated using the gradient theory of inhomogeneous fluids and equation of state.

應(yīng)用梯度理論和狀態(tài)方程（Peng－Robinson方程與Patel－Teja方程）相結(jié)合的半理論方法色就是色综合网，計算了正構(gòu)烷烴的表面張力人人摸人人操91制片，提出了關(guān)聯(lián)作用參數(shù)C的新方程。