查询词典 benzene series

The detection limit is 3.25×10-9g. It was found that the methods of double capillary GC were simple and efficient for identification and detection of homologous series of benzene in environmental water.

结果表明，所建立的双毛细管柱定性定量分析苯系物方法，具有简便、灵敏、准确、线性范围宽的优点，适合于水中痕量苯系物的监测分析。

A series of N-bonded donor-acceptor derivatives of phenothiazine containing benzene, anisole, pyridine, naphthalene, acetophenone, and benzonitrile as an electron acceptor was synthesized.

合成了一系列的N-10位取代的吩噻嗪给体受体化合物，这些受体包括苯、苯甲醚、吡啶、萘、苯乙酮和苯乙腈。

Exhibit manufactures: Heat preservation system of thin plasterer polybenzene board; Heat preservation system of polymer expand vitrification micro-bead ; Heat preservation grit and slurry system made from glue powder and poly benzene grain; Spot epispastic attemperator, Heat preservation of floor and roof, waterproof grit and slurry, heat preservation ceramic tile felt grit and slurry, calking material, soft water－prof greasy, felt grit and slurry blended gas block, render plasterer blended gas block grit and slurry, level ground grit and slurry and other series products.

参展产品：薄抹灰板、聚合物膨胀玻化微珠、胶粉聚苯颗粒、聚氨酯等墙体、楼板及屋面保温体系；防水砂浆、瓷砖粘结砂浆、填缝剂、柔性防水腻子、加气块粘结砂浆、加气块粉刷抹灰砂浆、地坪砂浆等系列产品。

The luminescent property of these materials was relative to the twisted angle between two benzene rings of the bridged biphenyl. The crystal structures of a series of seven-member heterocycle bridged biphenyls were determined by X-ray diffraction.

利用X射线单晶衍射仪确定了系列功能的七元杂环桥联联苯化合物的晶体结构，比较了桥联原子，6，6位取代基及分子间弱氢键对这类桥联联苯扭曲构象的影响。

A series of Ni-based catalysts with different supports were prepared by impregnation method and tested in the hydroxylation of benzene to phenol.

本文利用浸渍法制备了一系列不同载体的镍基催化剂，并将其用于苯的羟基化反应。

The bio-degradation pathways of NP would be that the long branches in nonyl of NP are firstly degraded into short methyl branches, which come into being a series of short chain alkyl phenols with different branch structures. The middle products should be further metabolized into simpler compounds, such as benzene acetic.

污水生物处理过程中壬基酚可能的初级生物代谢途径是壬基上的长支链断裂为短的甲基链，生成一系列带有不同分支结构的短链烷基酚类代谢产物，进一步的代谢产物有苯乙酸。

The present paper take the purine synonym kui zuo lin as a parent nucleus, separately in its 4 and 7 introduction structure diverse substituted benzene amino and the flexible side chain, designed a series of 4- substitution anilino-- 6- methoxy - 7-(2- hydroxyl to substitute for third oxygen radical) kui zuo lin a kind of compound.

本论文以嘌呤类似物喹唑啉为母核，分别在其4位和7位引入结构多样的取代苯氨基和柔性侧链，设计了一系列4-取代苯胺基-6-甲氧基-7-(2-羟基取代丙氧基)喹唑啉类化合物。

Methods: In this paper, a quinazoline purine analogues for the parent nucleus, respectively, and four of its seven introduced to replace the structure of diverse and flexible side-chain amino-benzene, design a series of 4 - to replace the aniline-based -6 - methoxy --7 -(2 - hydroxy replace C oxy) quinazoline compounds.

目的：通过各种化学合成方法完成目标化合物4--6-甲氧基-7-(2-羟基取代丙氧基)喹唑啉的合成并对目标化合物进行结构修饰，以期获得高活性的表皮生长因子受体酪氨酸激酶抑制剂。

A series of so-called hairy-rod fluorene-alt-benzene based polymers with different substituted groups on phenylene were synthesized through Suzuki route.

通过光谱、电化学和模拟计算等手段研究了苯环上不同性质的侧基取代芴苯聚合物的发光性质、电化学性质和溶剂化效应等，同时研究了侧基性质的变化对这些物理性质的影响规律。

This company is specialized in the production of ANKANG piston ring,piston,piston pin and bush series used for various imported and homemade benzene engine ,farm truck ,motorcycle , air compressor ,ship and internal-combustion engine of engineering machinery.

公司十年来一直以出口为主，现有员工300余人，技术人员20余人，专业生产"安康"牌各种进口，国产汽油机车、农用车、摩托车、空压机、船用及工程机械内燃机的活塞环、活塞、活塞销、轴瓦等系列产品。

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。