tetraethyl
英
美
网络 四乙基的; 四乙基
双语例句
- The cholesterol esterase and its oxidase were respectively immobilized onto sol-gel ( tetraethyl orthosilicate) and then an enzymatic reaction column was prepared.
采用溶胶凝胶技术分别固定了胆固醇脂酶和胆固醇氧化酶，制成固定化酶柱； - Study of Phase Transfer Catalytic Synthesis of N, N-Diethylaniline with Tetraethyl Ammonium Iodide
四乙基碘化铵相转移催化合成N，N&二乙基苯胺 - Tetraethyl lead worked in leaded gasoline but was phased out because it spoiled catalytic converters.
「有铅」汽油中的四乙基铅效果不错，但已经逐渐淘汰，因为它会破坏触媒转化器。 - Tetraethyl lead ( TEL) is a Class B poison and environmentally unacceptable for health reasons.
四乙基铅（TEL）是乙种的毒物并且在健康理由方面被环境所不能接受的。 - A study on pollution condition and distribution law of tetraethyl lead in ambient air of Beijing and Tianjin cities
京津市区大气四乙基铅污染状况与分布规律的研究 - ( of gasoline) not containing tetraethyl lead.
（关于汽油）不含四乙铅的。 - Low density silica is prepared by Sol-Gel polymerization of tetraethyl-orthosilicate ( TEOS).
用正硅酸乙酯为原料，采用Sol－Gel法进行了制备低密度二氧化硅材料的研究。 - The composite silica microsphere was obtained through the polymerization of urea and formaldehyde occurred in the silica sol that prepared from the hydrolyzation of tetraethyl orthosilicate.
以甲醛与尿素作为单体在正硅酸乙酯水解所得的氧化硅溶胶中进行聚合反应制得了有机&无机二氧化硅复合微球。 - Three-dimensional ordered macroporous ( 3DOM) SiW_ ( 12)/ SiO_2 hybrid materials were synthesized by using Keggin-type heteropolyacid SiW_ ( 12) and tetraethyl orthosilicate ( TEOS) as raw materials and polystyrene colloidal crystal assembled by sedimentation as template.
用自然沉降法组装成规则排列的聚苯乙烯胶晶，并以此作为模板剂，用Keggin结构的杂多酸SiW12和正硅酸乙酯组成溶胶作为先驱物，成功制备了三维有序大孔（3DOM）SiW12/SiO2杂化材料。 - [ Methods] Differential electric potential stripping method was applied to determine the lead content in blood and urine of 31 cases of acute tetraethyl lead poisoning, and statistic analysis was made on the result.
方法分别用微分电位溶出法测定31名四乙基铅接触者的血铅和尿铅并对其进行统计学分析。 - Study of Poisoning Effect of Tetraethyl lead and Lead Scavengers on Monolithic Non-Noble Metal Catalysts
四乙基铅和扫气剂对非贵金属燃烧催化剂中毒影响的研究 - The silica gel shell was produced through hydrolysis and polymerization of tetraethyl silicate ( TEOS).
囊壁材料是正硅酸乙酯水解、聚合生成的二氧化硅凝胶； - A Study on the Effect of Tetraethyl Lead on the Nerve System of the
四乙基铅对作业工人神经系统功能的影响 - On such basis, a new porous structured heteropoly acid catalyst is obtained by salt-gel reaction, using tetraethyl orthosilicate as the silicon source.
在此基础上，以正硅酸乙酯为硅源，利用盐&凝胶法得到一种新型介孔结构的杂多酸催化剂。 - Study on application of blood purification therapy in rescue of severe acute tetraethyl lead poisoning
血液净化疗法在重度急性四乙基铅中毒抢救中的应用探讨 - Adding phase-transfer catalyzer tetraethyl ammonium bromide ( TEBA) during the introduction of Pbf protecting group, the reaction proceeded more rapidly and the hydrolyzation of Pbf-Cl was reduced.
在引入Pbf时，加入了相转移催化剂四乙基溴化铵（TEBA），提高了反应效率，减少了Pbf-Cl的水解； - The SiO2/ TiO2 composite nanoparticle materials were prepared by the hydrolysis of tetrabutyl titanate and tetraethyl orthosilicate. On this basis dispersing such nanoparticles into the aliphatic polyurethane to prepare a novel polyurethane-SiO2/ TiO2 composite coatings.
本文采用溶胶-凝胶法，用钛酸四丁酯与正硅酸乙酯制备了纳米级SiO2／TiO2复合微粒，将其分散在聚醚型水性聚氨酯中，制备了新型水性聚氨酯-SiO2／TiO2复合涂料。 - The influence of H_2O, catalyst, solvent and composition of Cu-containing tetraethyl orthosilicate on the sol-gel process was discussed.
研究了水量、催化剂浓度、溶剂量及含铜硅酸乙酯的组成对溶胶-凝胶过程的影响。 - Adding the bio-additives to the gasoline could solve the problem of the pollution to the environment and the poison to the after treatment of the tetraethyl lead and MTBE.
生物基汽油添加剂能是解决四乙基铅、甲基叔丁基醚（MTBE）等添加剂对环境二次污染以及对废气后处理装置的毒害等问题的重要途径之一。 - Nano-silica was prepared by the sol-gel method with the hydrolysis and condensation of tetraethyl orthosilicate ( TEOS), and incorporated ammonia chloride ( NH_4Cl) as cationic surfactant.
采用溶胶-凝胶技术，利用正硅酸乙酯的水解和缩合反应，用NH4Cl作为阳离子表面活性剂，在短时间内制备了纳米SiO2粉末。 - Nanometer silica ( average particle size 60~ 100 nm) has been prepared by hydrolysis and condensation of tetraethyl orthosilicate, and then incorporated with proper amount of surfactant, cetyltrimethyl ammonium bromide ( CTAB).
通过原硅酸四乙酯的水解和缩合，并加入适量的表面活性剂十六烷基三甲基溴化铵（CTAB），制得了纳米二氧化硅（平均粒径60～100nm）。 - Lead Content in Blood and Urine of Acute Tetraethyl Lead Poisoned Patients
急性四乙基铅中毒患者血铅和尿铅含量与中毒程度的关系 - The new systems are compared with the traditional vulcanizing system of Tetraethyl orthosilicate/ Dibutyltin dilaurate.
并和传统的正硅酸乙酯/二月桂酸二丁基锡（T&12）硫化体系进行了比较。 - The main work is as follows: Mesoporous SiO2 was synthesized in acidic condition using CTAB as template and tetraethyl orthosilicate ( TEOS) as inorganic precursor, which characterized by scanning electron microscopy and infrared spectrometry.
本论文主要工作如下：1、以CTAB为模板分子，正硅酸乙酯（TEOS）为硅源，在酸性条件下合成出介孔SiO2，利用扫描电镜和红外光谱进行了表征。 - Tetraethyl Orthosilicate were chosen as precursors for SiO2 sol.
采用金属醇盐正硅酸乙脂为先驱体配制Si02溶胶。 - Different thickness of SiO2-encapsulating layer was fabricated by the hydrolysis of tetraethyl orthosilicate in isopropanol solution.
再通过正硅酸乙酯在异丙醇溶液中水解包覆了不同厚度的Si02层。