arenes
英
美
网络 芳烃; 罗马竞技场; 角斗场; 斗牛竞技场之歌; 圆形竞技场
双语例句
- Progress in Supramolecular Properties of Fluorinated Calix [ 4] arenes
含氟杯[4]芳烃衍生物超分子性能的研究进展 - Biodegradation ways, mechanism and kinetics of alkanes, cyclanes and arenes are reviewed, and the influences of temperature, nutrients, oxygen and salinity on biodegradation are analyzed.
综述了微生物对链烷烃、环烷烃和芳香烃的降解途径、机理和降解动力学，分析了温度、营养物质、氧及盐度等非生物因素对降解作用的影响。 - Trimethylbenzene was refined from cracking C_9 arenes by continuous distillation
连续精馏法从裂解C9芳烃中提取三甲苯 - The Improvement of the Cyclization Step in the Stepwise Synthesis of Calix [ 4] arenes
逐步法合成杯[4]芳烃关环反应的改进 - Catalytic cracking cycle slurry is rich in heavy arenes and can be applied to produce filled oak oil after furfural refining. Raffinate oil can also be used as catalytic cracking feedstock.
催化裂化回炼油浆富含重芳烃，经糠醛精制后，抽出油可用于生产橡胶填充油，同时抽余油可作为催化裂化原料回炼，回炼油浆得到充分利用。 - Calix [ 4] arenes bearing ester pendants in the lower rim were prepared by a convenient method using the more economical and less toxic ethyl chloroacetate/ alkali metal iodide as an alkylating reagent.
采用更为经济和毒性较小的***乙酯-碱金属碘化物体系作烷基化试剂，方便地制得了下缘带有酯基基团的杯[4]芳烃。 - The Quantitative Relationship Between the Molecular Structures and the Hydrophobic Parameters of Halogenated Arenes
卤代芳烃的脂水分配系数与分子结构的定量关系 - Molecular Recognition and "on-off" Switching of Calix [ 4] arenes to Monosaccharides and Pyrimidine Derivatives
杯[4]芳烃对单糖及嘧啶衍生物的分子识别和分子开关 - Fluorescence Spectral Studies on the Coordination of Calix [ 4] arenes Bearing Boronic Acid Moieties with Amino Acids
杯[4]芳烃硼酸与氨基酸配位作用的荧光光谱研究 - 1H NMR show that all new calix [ 4] arenes are cone conformation.
~1HNMR表明所有新的杯[4]芳烃都具有锥形（cone）构象。 - Studies on the Synthesis of Calix [ 8] arenes and Their Molecular Recognition by Spectroscopic Methods
杯[8]芳烃衍生物的制备及其分子识别作用光谱法研究 - Advance in selective alkylation of arenes
芳烃选择性烷基化的研究进展 - The Synthesis of Calix [ 4] arenes Bearing Nitrogen
含氮杯[4]芳烃的合成 - Arenes are dominant components and most of arenas are 2-4 ring alkyl substitutes.
芳烃含量在萃取物中占绝对优势，且主要为2-4环的烷基取代芳烃； - Vicarious nucleophilic substitution ( VNS) of hydrogen is a new type of reaction which is differ-ent from the usual electrophilic and nucleophilic reactions of the nitro arenes.
氢的替代亲核取代反应（VNS）是与硝基芳环的亲电反应、亲核反应不同的一种新反应。 - To clean gasoline should not only control the content of sulfur, olefins, arenes, benzene, and oxides but also add effective cleaners to meet the cleanliness requirement of nozzle, admission value and firebox.
车用汽油的清洁化除严格控制汽油中硫、烯烃、芳烃、苯和含氧化合物的含量外，必须添加有效的汽油清净剂，以保证燃油系统的喷嘴、进气阀和燃烧室的清洁要求。 - An anticorrosive and antistatic coating for storage tank was prepared with PTA wastes and heavy arenes.
由对苯二甲酸（PTA）废料酯化合成的聚酯树脂再与重芳烃、锌粉、铁红、石墨及固化剂等制得防腐抗静电油罐涂料。 - In addition, methylation and methyl rearrangement of arenes were mainly controlled by the abundance, source and evolution degree of soluble organic matter.
研究还显示，芳烃的甲基化和甲基重排作用受原始可溶有机质丰度、来源和演化程度的控制。 - Results Calix [ n] arenes derivatives 1a-d showed no extracting ability to alkali metal ions;
结果杯芳烃醚酯类衍生物1a-d对碱金属离子无明显萃取作用； - Therefore, the catalysts which show the better catalytic performance in toluene disproportionation and the transalkylation of C_9 arenes to benzene and xylene that are great needed in market are desired to be used.
因此，希望能开发出更好的甲苯歧化和碳九芳烃烷基转移催化剂，来生产市场上需求量很大的苯和二甲苯。 - Preparation of anticorrosive and antistatic coating for storage tank with PTA wastes and heavy arenes
用PTA废料和重芳烃制备防腐抗静电油罐涂料 - Synthesis and Properties of Chiral Calix [ 4] arenes
手性杯[4]芳烃的合成及其性质的研究 - Increasing the yield of benzene and xylene in the toluene disproportionation and the transalkylation of C_9 arenes is an effective method to adjust the productive and required balance of each component in arenes and to meet the need of petrochemical industry for benzene and xylene.
甲苯歧化和碳九芳烃烷基转移增产苯和二甲苯，是调节石油芳烃中各组分的产需平衡，满足石油化工对苯和二甲苯需求的有效手段。 - QSAR Studies on the Acute Toxicities of Substituted Arenes to Three Kinds of Organisms Based on Their Molecular Connectivity Index
取代芳烃与3种生物急性毒性的定量构效关系 - Inherently chiral calix [ 4] arenes are a typical chiral macrocyclic compounds in which chirality generated from the asymmetric arrangement of non-chiral substituents free from a chiral axis, a center chiral or a planar chiral molecules and other chiral factors.
固有手性杯芳烃是一类典型的手性大环化合物，它们的手性来自杯芳烃骨架非手性取代基的不对称排列，而非以往我们所见过的轴手性、中心手性或平面手性等分子。 - Compared with the other three conformers, calix [ 4] arenes in the 1,2-alternate conformation were less reported, mainly due to the lack of a satisfactory preparation method.
与其它三种构象相比较，1,2-交替构象的杯[4]芳烃较少被报道，主要原因还是缺少令人满意的制备方法。 - As the important staple chemicals, Ethylene and arenes are mostly produced from petroleum, coal and natural gas in industry, which are not reproducible going with the pollutions to environment.
乙烯和芳烃是极为重要的大宗化学品，其现有工业化生产主要是基于不可再生的化石原料（煤炭、石油和天然气），并且伴有较为严重的环保问题。 - In this thesis, we investigated the palladium-catalyzed regioselective C-H bond functionalizations of arenes using free-amine as the directing group.
本论文以氨基作为导向基团，系统地研究了钯催化的芳烃区域选择性的碳氢键官能化反应。 - Trifluoromethyl-substituted arenes are widely used in the synthesis of pesticides, Pharmaceuticals, functional material and dye.
芳香三氟甲基化合物是一类重要的含氟有机物，广泛应用于农药、医药、功能材料和染料中。 - We studied Pd ( OAc) 2-catalyzed C-H alkenylation of arenes using thioether as directing groups.
我们研究了Pd（OAc）2催化的硫醚导向C-H键烯基化反应。