查询词典 naphtha

A new method for arsenic determination in naphtha using hydride generation atomic fluorescence spectrometry was developed.

建立了一种氢化物发生-原子荧光光谱法测定石脑油中砷含量的新方法。

Methods:Naphtha and fatty acid were analyzed by GC-MS .

使用气相色谱与质谱联用对刺山柑果实的挥发油和脂肪酸进行分析。

The factory produces gasoline, diesel oil,naphtha,LPG,nonyl phenol,methyl ethyl ketone,MTBE,chemical auxiliaries,dodecene and nonene, etc.

主要产品：汽油，柴油，石脑油，液化石油气，壬基酚，甲乙酮，甲基叔丁基醚，化学助剂，十二烯，壬烯等。

Main products are special acid, pentyl chloride, methyl chloride acid special, special acid methyl iodine, phosphorous acid, hydrochloric acid, dilute sulfuric acid, industrial naphthalene, coal tar, fuel oil, wash oil, naphtha, Anthracene oil.

主要产品为特戊酸、特戊酰氯、特戊酸氯甲酯、特戊酸碘甲酯、亚磷酸、盐酸、稀硫酸，工业萘、煤焦油、燃料油、洗油、轻油、蒽油等。

The process whereby heavy molecules of naphtha or petroleum are broken down into hydrocarbons of lower molecular weight (especially in the oil-refining process).

把石油重分子分解成低分子碳氢化合物的过程；把石油分子分解成更小的分子并提取低沸点的分馏部分的过程。

In contact with a hot surface, naphtha petroleum fractions crack to produce ethylene and propylene

石脑油馏份与一个热表面接角，就裂解而得到乙烯和丙烯。

The most important route to produce these unsaturated hydrocarbons is by steam cracking, using principally petroleum gases or naphtha as feedstock.

生产这种不饱和烃类最重要的路线是靠蒸汽裂解，主要以石油气体和石脑油作原料。

Whereby heavy molecules of naphtha or petroleum are broken down into hydrocarbons of lower molecular weight (especially in the oil-refining process).

把石油重分子分解成低分子碳氢化合物的''。'过程'。''；把石油分子分解成更小的分子并提取低沸点的分馏部分的''。'过程'。''。

Results showed that under the conditions of a reaction temperature of 60 ℃,a reaction time of 6 h and a catalyst consisted of 1.0% BF3-ether and 1.5% AlCl3,the yields of aromatic solvent naphtha and petroleum resin...

结果表明，采用两段聚合法，在催化剂三氟化硼乙醚络合物质量分数1.0%、三氯化铝质量分数1.5%、聚合温度60℃、聚合时间6h的条件下，芳烃溶剂油收率为71.1%，石油树脂收率最高可达20%；同时所得的芳烃溶剂油切割为120号和200号溶剂油，指标达到行业标准。

Ethylene unit ; 9 carbon ; aromatic hydrocarbon ; solvent naphtha ; petroleum resin

乙烯装置； 9碳；芳烃；溶剂油；石油树脂

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。