- 更多网络例句与四乙铅相关的网络例句 [注:此内容来源于网络,仅供参考]
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Tetraethyl lead is a Class B poison and environmentally unacceptable for health reasons.
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。
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The harmful components of CNG vehicle tailgas discharges is only 13% of that in gasoline vehicle, and noise reduced 10%, no tetraethyl lead deposit.
CNG汽车尾气中的有害物质排放量只相当于汽油车的 13%,噪音降低约 10 %,并根除了对人体危害极大的四乙铅的排放。
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Of gasoline containing tetraethyl lead .
含有四乙铅的。
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To produce lead tetraethyl solely because, a short time before the outbreak of the war, the Americans had established plants for us ready for production and supplied us with all available experience. In this manner we did not need to perform the difficult work of development because we could start production right away on the basis of all the experience that the Americans had had for years.
Sutton所写的《WALL STREET AND THE RISE OF HITLER 》一书中的资料,在1938年,德国空军急需500吨四亿铅添加剂,美国杜邦公司经过认真考虑,认为这样的需求肯定是用于战争目的,最终这批四乙铅通过纽约Ethyl出口公司借给了德国的Ethyl G.m.b.H。,这比交易纳粹德国航空部以及法本公司董事Mueller-Cunradi安排的。
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Anti-knock additive tetraethyl lead,vapor pressure,cetane number and content of aromatic hydrocarbon,ethylenes,sulfur and oxides respectively in the motor fuel are more detailedly analysed in regard to their effect on motor vehicle exhaust emission.
较为详细地分析了燃油中四乙铅抗爆剂、芳烃含量、烯烃含量、硫含量、蒸气压、十六烷值及含氧化合物等对汽车排放的影响,并简述了其发展趋势。
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Then the protected D-mannitol, mixed with lead tetraacetate, hippuric and acetic anhydride, were refluxed in THF for 18 h in a one-pot two step reaction to afford a chiral precursor-2-phenyl-4-[-2,3-O-]-propylidene-5(4H)-oxazolones.
产物与四乙酸铅、马尿酸、乙酐于THF中回流18 h完成一釜二步反应,纯化后得到含有手性碳原子的环丙烷氨基酸前体-2 苯基-4-[-2,3-O-]丙叉?
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The nickel, lead, cadmium and mercury ions were pre-column derived by tera-(2-aminophenyl)-porphine (T2APP). These chelates were enriched by solid phase extraction with C18 cartridge and the enrichment factor of 50 was achieved.
中草药样品用微波消化,样品消化液中的镍、铅、镉、汞用四--卟啉(T2APP)柱前衍生,然后用ZORBAX RP18固相萃取小柱萃取富集镍、铅、镉、汞的T2-APP络合物,富集倍数为50倍;经富集后的络合物用乙腈和0.05mol?
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A novel lead ionselective polyvinyl chloride membrane electrode was prepared using 25,27di(2thiadiazolethiooxyethyl)26,28dihydroxyl5,11,17,23tetraptertbutylcalix[4]arene as the ionophore. The influences of the nature of plasticizers and the amounts of the incorporated ionophore and ionic additive on the response characteristics of the electrode were studied.
制备了以25,27二(2噻二唑基硫代乙氧基)26,28二羟基5,11,17,23四叔丁基杯\[4\]芳烃为载体的聚氯乙烯膜铅离子选择电极;研究了电极膜中增塑剂种类及载体和离子定域体含量对电极性能的影响。
- 更多网络解释与四乙铅相关的网络解释 [注:此内容来源于网络,仅供参考]
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tetraethyl ammonium hydroxide:四乙基氢氧化铵
四氧化三铁 Iron Oxide | 四乙基氢氧化铵 tetraethyl ammonium hydroxide | 四乙铅 tetra ethel lead
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ethyl:四乙铅
ethyl hexanol 乙基乙醇 | ethyl 四乙铅 | ethyl 乙基
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ethylate:乙醇盐
ethylation 乙基化 | ethylate 乙醇盐 | ethyl petrol 四乙铅汽油
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tetraethyl lead:四乙铅
尽管人们担心存在健康威胁,但四乙铅(tetraethyl lead)还是被加进美国销售的汽油当中. 在接下来的几十年间,空气中的铅将毒害土壤、水和食物. 铅会遗留在人骨中,并对儿童大脑造成先天性损坏. 最初人们生产聚氯联二苯(PCB)是用于电子变压器、液压机液体、增塑剂和黏合剂.
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tetraethyl lead:四乙基铅
四乙基铅 (tetraethyl lead) 提一种是在汽油中加入抗爆剂,另一种方法是采用含有高辛烷值烃类成分的汽油炼制工艺. 在众多种类的抗爆剂中,人们发现四乙铅的抗爆效果特别显著,只要少量的四乙铅就能大大提高汽油的辛烷值,因此,从 1921年起,
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tetraethyl lead:四工铅
tetrachloromethane 四氯代甲烷 | tetraethyl lead 四工铅 | tetraethyl lead 四乙铅
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tetraethyl plumbate:四乙铅
四乙氧基硅 tetraethoxy-silicane | 四乙铅 tetraethyl plumbate | 钛酸四乙酯 tetraethyl titanate
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tetraethyl radiolead:四乙基放射铅
tetraethyl propane-tetracarboxylate 丙四羧酸四乙酯 | tetraethyl radiolead 四乙基放射铅 | tetraethyl silicane 四乙基硅
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lead tolerance determination apparatus:四乙铅容许量测定器
lead titanate 钛酸铅 | lead tolerance determination apparatus 四乙铅容许量测定器 | lead tube 铅管
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tetrafluoroethylene:四氯乙烯
tetraethyllead 四乙铅 | tetrafluoroethylene 四氯乙烯 | tetragon 四角形