- 更多网络例句与环烷的相关的网络例句 [注:此内容来源于网络,仅供参考]
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Almost 100% selectivity to cyclohexene could be obtained when the molar ratio of acetic acid to cyclohexane was 12.9∶1 at 450 ℃, the conversion of cyclohexane was 6.9%.
反应温度为450 ℃,醋酸与环己烷的摩尔比为12.9∶1时,环己烷的转化率为6.9%,环己烯的选择性为100%。
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Through using Mythylene DinitrAmine as rude product, the knowledge of its reaction properties in different phases have been increased, Through using Mythylene BisAcetAmide as rude product, intermediates which include 1,3-Diacetyl -4,5-dihydroxy -1,3-diazacyclopentane and 1,3-Diacetyl- 4,5-diacetoxy-l,3-diaza cyclopentane have been obtained. 2,4,6,8-tetracetyl- 2,4,6,8-tetraaza bicyclo[3,3,0]octane which can be used to produce Bicyclo-HMX by nitrolysis was also produced. Through using Mythylene BisFormAmide as rude product, intermediates which include 1,3-Diformyl-4,5-dihydroxy- 1,3-diazacyclopentane and 1,3-Diformyl- 4,5-diacetoxy-l,3-diazacyclopentane have been abtained.
以亚甲基二硝胺为初始原料,加深了对亚甲基二硝胺在不同反应相反应特征的认识;以亚甲基二乙酰胺为初始原料,制备了中间体1,3-二乙酰基-4,5-二羟基-1,3-二氮杂环戊烷和1,3-二乙酰基-4,5-二乙酰氧基-1,3-二氮杂环戊烷,最终制备了可被直接硝解为双环HMX的2,4,6,8-四乙酰基-2,4,6,8-四氮杂双环[3,3,0]辛烷;以亚甲基二甲酰胺为初始原料,制备了中间体1,3-二甲酰基-4,5-二羟基-1,3-二氮杂环戊烷和1,3-二甲酰基-4,5-二乙酰氧基-1,3-二氮杂环戊烷。
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Ethylene Oxide and Pentafluoroethane Mixture, with not more
环氧 烷和五氟烷的混合物,环氧烷含量不超过
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The qualified 10B naphthenic type rubber filling oil is developed by taking hydrodeacidifying oil from Liaohe naphthene base vacuum cut 2 as raw oil.
经过实验室研究,以辽河环烷基减二线加氢脱酸油为原料,生产出合格的 10B高级环烷型橡胶填充油,产品通过了岳阳石化橡胶厂使用评定,10B高级环烷型橡胶填充油可以作为填充油生产SBS充油胶。
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The compounds are represented by the structural Formula 1, Chemical formula should be inderted here as it appears on the abstract in paper form. a prodrug thereof, or any pharmaceutically acceptable salt, solvate, isomer or racemic mixture of the compound or said prodrug wherein R1 is heteroaryl, N-arylaminocarbonyl, N-heteroarylaminocarbonyl, benzimidazolyl or benzothiazolyl; R15 is present or not and if present is H, aryl, alkyl, arylalky or heteroarylalkyl; A is aryl, heteroaryl, cycloalkyl, cycloalkylidene, heterocycloalkylidene or heterocycloalkyl wherein said aryl, heteroaryl, cycloalkyl, cycloalkylidene, heterocycloalkylidene and heterocycloalkyl moieties may be substituted or unsubstituted; and B, L, X and R18 are defined herein.
所述化合物用结构式1表示,包括其前药或所述化合物或所述前药的任何药学上可接受的盐、溶剂合物、异构体或外消旋混合物,其中R 1 为杂芳基、N-芳基氨基羰基、N-杂芳基氨基羰基、苯并咪唑基或苯并噻唑基;R 15 存在或不存在,如果存在,则为H、芳基、烷基、芳基烷基或杂芳基烷基;A为芳基、杂芳基、环烷基、环烷叉基、杂环烷叉基或杂环烷基,其中所述芳基、杂芳基、环烷基、环烷叉基、杂环烷叉基和杂环烷基部分可被取代或未被取代;B、L、X和R 18 如说明书所定义。
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While all the phenyl groups in tetraphenylphenyl groups or benzophenanthrene groups are not coplanar. At the same time, by density function theory, the electronic energy gap between HOMO and LUMO frontier molecular orbitals of condensed aromatics are calculated and the Eg of acenaphthenyl groups in C_2 gum is the smallest, which explains the reason why C_2 gum has the best radiation protection effects.
利用甲基三氯硅烷和溴苯的格氏反应合成了甲基苯基二氯硅烷,用核磁分析证实了格氏反应中高沸点副产物为甲基二苯基氯硅烷;通过甲基苯基二氯硅烷和二甲基二氯硅烷的共水解,再裂解而制得含Me_2SiO链节的甲基苯基环硅氧烷混合物,进而利用碱胶开环聚合得到甲基苯基硅橡胶生胶;也可通过甲基苯基二氯硅烷水解所得甲基苯基环硅氧烷D_3~(3Ph、D_4~(4Ph_)与D_4开环聚合制得甲基苯基硅橡胶生胶。
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Good thermal stability and self-extinguishing behavior was observed with the cured polybenzoxazine resins. Second, furan-containing benzoxazine monomers, P-FBz, BPA-FBz, and 4FP-FBz were prepared using furfurylamine as a raw material. Formation of furfurylamine Mannich bridge networks in the polymerizations of P-FBz and BPA-FBz increased the cross-linking densities and thermal stability of the resulting polybenzoxazines. P-FBz and BPA-FBz- based polymers also exhibited high glass transition temperatures above 300℃, high char yields, and low flammability with a limited oxygen index value of 31. The dielectric (Dk3.21–3.39) and mechanical properties (high storage modulus of 3.0–3.9 GPa and low coefficient of thermal expansion of 37.7– 45.4 ppm) of the P-FBz and BPA-FBz-based polymers were superior or comparable to other polybenzoxazines. 4FP-FBz used for polybenzo- xazine modification by means of formation of benzoxazine hybridation with P-FBz.
第二部份以2-呋喃甲胺为起始物,制备了P-FBz、4FP-FBz与BPA-FBz 三个含呋喃官能基之氧代氮代苯并环己烷的单体;BPA-FBz与P-FBz於开环聚合中形成之Mannich bridge网状结构有效地提升聚氧代氮代苯并环己烷聚合物之交联密度与热安定性;Poly与Poly具有大於300℃之玻璃转移温度、高的焦炭生成率与具有31之极限氧指数(Limited oxygen index, LOI)的难燃性特质,Poly与Poly之介电常数(Dk=3.21~3.39)与机械性质[3.0~3.9 GPa的储存模数与37.7~45.4ppm之低热膨胀系数( Low coefficient of thermal expansion, Low CTE)]均较其他聚氧代氮代苯并环己烷为优;4FP-FBz具有低之介电常数(Dk=2.7),以其作为降低介电常数之反应型改质剂,与P-FBz混成,证实可有效地降低Poly的介电常数。
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To carry out statically corrading experiments of the naphthenic acid to Q235-A specimen; and to analyse its' dynamic mechanism at this reaction condition. The adsorption-corrosion isothermal line of the naphthenic acid has been obtained.
以易腐蚀设备的Q235-A钢材为研究对象进行环烷酸的静态腐蚀试验,对该条件下环烷酸腐蚀动力学作用机理进行了分析,得出环烷酸腐蚀的温度和酸值关系式。
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The recent progress in molecular design and synthesis of polyborosilazane precurosors for SiBCN ceramics is reviewed.Especially the borazine modified polyborosilazane,monofunctional borane modified polyborosilazane on side chai...
本文分4个方面,即基于硼吖嗪的聚硼硅氮烷、侧基含有环硼氮烷或单硼烷的聚硼硅氮烷、基于多官能硼烷构筑的聚硅氮烷和含硼聚硅基碳化二亚胺,从聚硼硅氮烷分子结构设计、改性、合成及在多维尺寸材料中初步应用的角度综述了该领域国内外研究的新进展,指出了聚硼硅氮烷陶瓷前驱体设计合成研究发展中值得关注的新方向。
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Ethylene Oxide and Dichlorodifluoromethane Mixture, with not
环氧 烷和氯氟烷的混合物,环氧烷含量不超过
- 更多网络解释与环烷的相关的网络解释 [注:此内容来源于网络,仅供参考]
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methyl cyclohexane:甲基环己烷
本标准是为工作场所有害因素职业接触限值配套的监测方法,用于监测工作场所空气中脂环烃类化合物 [包括环己烷(Cyclohexane)、甲基环己烷(Methyl cyclohexane)和松节油(Turpentine)等]的浓度.
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cyclopentane:环戊烷
本文论述了氯氟烃(CFC-11)替代品环戊烷(Cyclopentane)的性质和其应用于全无氟绿色冰箱聚氨酯硬泡性能的研究结果,解决环戊烷发泡剂易燃、易爆和在聚醚多元醇中的溶解度差的问题是开发环戊烷发泡剂应用领域的重要因素.文中列出了环戊烷聚氨酯硬泡塑料性能参数:芯密度32.6kg/m3;
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pharmaceutic naphthene oil:药用环烷油
phao-plankton 透光层浮游生物 | pharmaceutic naphthene oil 药用环烷油 | pharmaceutical 药物的;药品
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sannyasin:印度的托钵僧
sannyasi /印度的托钵僧/ | sannyasin /印度的托钵僧/ | sanocrisin /双醋环烷/
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naphthenic:环烷的 (脂)环烃的
power screen 机械[动]筛 | naphthenic 环烷的 (脂)环烃的 | plurisubharmonicity 多重次调和性
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naphthenic:环烷的环烃的
naphthenebaselubricationoil 环烷基润滑油 | naphthenic 环烷的环烃的 | naphthenicbase 环烷基
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naphthenic:环烷的
naphthene 环烷 | naphthenic 环烷的 | naphthenone 环烷酮
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naphthenic acid:环烷酸
精制环烷酸(naphthenic acid)是环烷烃的羧基衍生物,是石油产品精制时所分出的有机酸. 本品原为深棕色油状混合物,精制后为淡黄色或淡棕黄色油状透明液体,有特殊气味.
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naphthenic oil:环烷油
我公司所生产环烷油(Naphthenic oil)是由环烷基原油加工而制得,主要是环戊烷、环己烷及其同系物. 它有较好的抗氧化安定性及化学稳定性,因此本产品环保无毒,且与大多数橡胶相容性极佳,具有良好的产品适用性.
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ADOS:(含油的)环烷酸钠洗渣
adornment || 装饰, 装饰品 | ados || (含油的)环烷酸钠洗渣 | adosculation || 体外受精