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加一滴甲苯作为防腐剂。Add 1 drop on toluene as a preservative.

加一滴甲苯作为防腐剂。add 1 drop of toluene as a preservative.

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但是,甲苯和二甲苯都是有毒的物质。However, toluene and xylene are toxic substances.

所用的二异氰酸酯包括甲苯二异氰酸酯。The diisocyanates used have included toluene diisocyanate.

四氯化碳和甲苯为较好的溶剂介质。Carbon tetrachloride and toluene appear to be the optimum solvents.

一种催化氢化合成3,4,5-三甲氧基甲苯的方法。Method of synthesizing 3,4,5-trimethoxy toluene by catalytic hydrogenation.

本文介绍了在线近红外光谱法对重整生成油的甲苯含量进行快速测定的方法。Determination of toluene of reformate by on-line NIR is described in the paper.

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OMMT在环己烷中不溶解,在甲苯和二甲苯等溶剂中可形成均匀溶液。The OMMT was soluble in toluene and xylene, but didn't dissolve in cyclohexane.

根据NASA的相关研究,证明了蜘蛛草可以除去空气中的甲醛、二甲苯和甲苯成分。In NASA's study, they were shown to get rid of formaldehyde, xylene and toluene.

在铬钼型催化剂上研究了甲苯加氢脱甲基反应动力学。The kinetics of hydrodealkylation of toluene into benzene on CrMo catalyst was studied.

光通量减弱使乙醛和甲苯的降解率均下降。Decreasing light intensity , the degradation of acetaldehyde and toluene both decreased.

甲苯直接氧化制备苯甲醛是一条最为简单而经济的生产工艺。Direct oxidation of toluene is a simple and cheap production technology of benzaldehyde.

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简单清洁的甲苯直接氧化法是苯甲醛生产技术的发展方向。Direct oxidation of toluene is a simple and clean route for manufacture of benzaldehyde.

论文测定了DMF、丁酮和甲苯在DBP中的亨利系数。In this thesis, the Henry coefficients of DMF, butanone and toluene in DBP were measured.

另外,公司还可提供各种品牌的进口甲苯二异氰酸酯。In addition, the company also offers a variety of brands of imported toluene diisocyanate.

酸性非沸石粉体不适合作为甲苯歧化催化剂的粘结剂。Acid non-zeolite is not suitable for secondary component of toluene disproportionation catalyst.

甲苯对土壤反硝化酶活性有明显的抑制作用,且土壤肥力水平越高,抑制幅度越大。Toluene significantly inhibited DEA, and the inhibition grew with the increase of soil fertility.

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红鹳花能吸收二甲苯、甲苯和存在于化纤、油漆中的氨。Red marabou flower can absorb the ammonia in xylene, toluene and consist in chemical fibber, paint.

考察了不同合成条件对甲苯烷基化反应的影响。The paper discussed the influence of different synthesis conditions on toluene alkylation reaction.

另外,它还可以抑制电脑显示器和打印机中释放的二甲苯和甲苯。In addition, it can inhibit the release of computer monitors and printers in the xylene and toluene.