甲基
- 与 甲基 相关的网络例句 [注:此内容来源于网络,仅供参考]
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Noncondensible gas(7%~33%,consisting of CO,CO2,H2 and C1-C2 hydrocarbons),liquid(water and oil phases,26%~45%)and solid residues(31%~51%)were collected after microwave heating of waste PCB.
结果显示:微波热解得到的气体、液体、固体的产率分别为7%~33%、26%~45%、31%~51%,其中气体主要由CO、CO2、H2及有机烃类组成,可燃性气体占70%左右,可作为燃料气加以利用;液体分为水相及油相,经常压蒸馏后得到的120~250℃馏分主要为单酚化合物,苯酚高达50%左右,甲基苯酚和邻甲基苯酚为25%以上,是良好的化工原料;固体中除炭外,还含有许多金属如铅、锡和铜等,可以回收利用。
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In the presence of catalytic rhodium acetate, ethyl 2-diazo-3-oxo-per fluoroalkanoates, reacted readily with nitriles to give a series of 5-fluoroalkyl substituted 1, 3oxazoles with high regio-selectivity through a metal carbenoid intermediate. The reactions of carbenoids with noncyclic vinyl ethers or cyclic vinyl ethers afforded dihydrofuroates in good to excellent yields. Interestingly, only vinyl C-H insertion compound was obtained concerning of the reaction of carbenoids with 2, 5dimethylfuran due to the steric hindrance of methyl group
醋酸铑分解2-重氮-3-氧代-全氟羧酸乙酯形成的金属卡宾作为1,3-偶极体,可以与一系列芳基或烷基取代的腈反应,高度区域选择性地生成一系列4-乙氧羰基-5-氟烷基取代的噁唑化合物;也可以与富电子的链状和环状的烯基醚反应,以优良的产率得到一系列氟烷基取代的二氢呋喃类化合物;而与2,5-二甲基呋喃的反应,由于甲基的位阻作用,只得到金属卡宾对呋喃3-位烯基碳氢键插入产物。
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Both high temperature and high humility are beneficial to formation and accumulation of nornicotine during yellowing .
去甲基烟碱含量烤后较烤前增加,而且变黄期高温、高湿均有利于去甲基烟碱的形成和积累。
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Methyllycaconitine , alpha bungarotoxin , nicotine, and nornicotine were also tested for comparison.
作为对比,甲基牛扁亭,α-银环蛇毒素,烟碱和去甲基烟碱也同时作了测试。
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Ingredients:Rose extract,cetearyl alcohol, dimethyl silicone oil, glycerol, octadecyl trimethyl ammonium chloride.
成分:玫瑰提取液,十六十八混合醇,二甲基硅油,甘油,十八烷基三甲基氯化铵。
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Ingredients:olive extract,cetearyl alcohol, dimethyl silicone oil, glycerol, octadecyl trimethyl ammonium chloride.
成分:橄榄提取液,十六十八混合醇,二甲基硅油,甘油,十八烷基三甲基氯化铵。
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Styrene-dimethylsiloxane block copolymers with types of andn were, synthesized under the existence of catalyst, lithium naphthalene, and couplins asent, stannous octoate or olisomer of dichlorodimethysiloxane.
本文用萘锂作为催化剂,辛酸亚锡或二氯二甲基硅氧烷的低聚物为扩链剂,设计和合成了分子量为6~13万苯乙烯与二甲基硅氧烷的結构单元数之比为1.0~9.1的嵌段共聚物和_n。
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Linear and star-shaped hydroxy-terminated polys were synthesized by reacting L-lactide with co-initiators such as poly,hydroxyethyl methycrylate,trimethylolpropane,mannitol and sorbierite in the presence of stannous octoate as catalyst.
以辛酸亚锡为催化剂,分别以聚乙二醇、甲基丙烯酸羟乙酯、三羟甲基丙烷、季戊四醇、甘露醇和山梨醇等和L-丙交酯反应,得到末端为羟基的线形和星形聚L-丙交酯。
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And we also modify the surface of the glass fiber reinforcedunsaturated polyester with the G-02 and G-04. It reacts with the materials surface layer whenthe Composite solidifies. It gets a lower critical surface tension, high contact angle. Theproperty of waterproof and oilproof has improved.
并且利用已有的活性物质(甲基丙烯酸六氟丁酯G-02,甲基丙烯酸十二氟庚酯G-04)处理玻璃纤维增强不饱和聚酯的表面,在基体固化时,实现在材料表层参与固化反应,获得特低临界表面张力、高接触角特性,使处理后的玻璃钢表面具有一定的疏水疏油性能。
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Chapter 3 The imine salt is formed initially by the addition of an organolithium compound to the aromatic nitrile. This type of reaction usually leads to cyclic products.such as triazines.
第三章研究发现有机锂化合物LiCH_2[SiMe(NMe_2)_2]与芳香腈(如苯腈、邻甲基苯腈、间甲基苯腈)反应,可以得到2,4,6-三取代均三嗪,这是一种该类均三嗪的简单有机合成方法。
- 推荐网络例句
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My first article for Screen Power Magazine, which is to this day is the official magazine of Jackie Chan, was a DVD review of the Hong Kong actioner Gen-X Cops, starring Nicholas Tse and Daniel Wu.
我的第一篇文章为屏幕力量杂志,在对这天是Jackie Chan 正式杂志,是香港actioner Gen X 警察的DVD 回顾,担任主角Nicholas Tse 和丹尼尔吴。
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His lips grazed hirs, Now what are you going to do?
他的唇使吃草了 hirs,现在你将要做什麼?
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I wasn't a huge drinker, but I enjoy it socially.
我不是一个贪杯的人,但在社交场合我会略微享受一点。