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汽车尾气中的四乙基铅是剧毒物质。Automobile exhaust tetraethyl lead is a highly toxic substance.

他叙述了恙虫对焦磷酸四乙脂的抗性进化。He described the evolution of resistance in Tetranychus against tetraethyl pyrophate.

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四乙基铅是乙种的毒物并且在健康理由方面被环境所不能接受的。Tetraethyl lead is a Class B poison and environmentally unacceptable for health reasons.

近年来，各国均在研究新型的有机金属配合物来替代四乙基铅。In recent years, both in research new metal organic complexes to replace tetraethyl lead.

目的观察血铅和尿铅含量与急性四乙基铅中毒程度之间的关系。To observe the relationship between lead content in blood and urine and acute tetraethyl lead poisoning.

利用原子吸收法测定样品中四乙基铅的含量，并对准确度、回收率进行了实验。The content of tetraethyl lead is determined by atomic absorption spectrometry. The accuracy and recovery rate is tested.

目的研究接触四乙基铅汽油作业人员健康状况，探讨四乙基铅汽油接触者的监护指标。Objective To study the health state of workers exposed to tetraethyl lead petrol, and to find a surveillant index for them.

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结论脱离接触四乙基铅早期测定血铅、尿铅水平可作为评判四乙基铅中毒轻重程度的一项参考指标。Disengagement from the exposure to tetraethyl lead in an early phase can be used as an index to determine the poisoning degrees.

含铅汽油的废气污染传统汽油生产工艺中以四乙基铅作为防爆剂。Leaded gasoline exhaust pollution of traditional gasoline with the production process of tetraethyl lead as an anti-explosive agent.

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。The influence of H_2O, catalyst, solvent and composition of Cu-containing tetraethyl orthosilicate on the sol-gel process was discussed.

本文对51名四乙基铅汽油作业工人进行了行为功能测验。This thesis through the measure to the results of behavioral function tests of 51 tetraethyl lead gasoline operating workers were reported.

锰基有机化合物是目前国际上代替四乙基铅，且比四乙基铅更为优良的新型抗爆剂之一。Manganese-based organic compound is present international replace tetraethyl lead, but more than tetraethyl lead more good ANTIKNOCKS new one.

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将这种液体按比例与柴油混合，再加入适量的四乙基铅，从而形成一种新的用于机动车的燃料。After said liquid is mixed with diesel oil in proportion, a right amount of tetraethyl lead is added so as to form a new fuel for motor vehicle.

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。On such basis, a new porous structured heteropoly acid catalyst is obtained by salt-gel reaction, using tetraethyl orthosilicate as the silicon source.

目的研究了5-氨基噻吩四乙酯的相转移催化合成，并考查最佳催化条件。OBJECTIVE Synthesis of tetraethyl ester of 5-aminothiophene by phase transfer catalysis was studied, and the best catalysis condition was also examinated.

随着四乙基铅的禁止使用，各国均开发与研制了许多金属和非金属的抗爆剂，在金属抗爆剂中，有铁剂和锰剂。With tetraethyl lead to ban the use, development of both countries and the development of many of the metal and non-metallic ANTIKNOCKS in ANTIKNOCKS metal, iron and manganese agent.

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。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.