甲苯

Then quality upgrading scheme was explored in order to solve the high content of sulphur and nitrogen in pyrolytic oil, low flash point as well. Yields of pyrolysis of scrap tires in a pilot-scale rotary kiln under 550℃were firstly summarized. Then elemental composition and physiochemical properties were analyzed on both pyrolytic crude oil and its fractions. Based on these researches, the feasibility that pyrolytic oil is used as fuel was discussed. From FT-IR spectra the functional group compounds were generally acquainted, and by column chromatography analysis chemical compositions were clearly known. Then through GC analysis the absolute content of BTX in pyrolytic crude oil was defined.

本文首先考察了中试回转窑550℃下的废轮胎热解产率及热解原油的元素组成和理化特性，对其作为燃料使用的可行性进行了分析；通过实沸点蒸馏研究了轻质、中质馏分热解油的基本特性：红外分析得出了有代表性馏分热解油的大致官能团组成形式，对热解油的强芳香性和部分不饱和性有了整体了解；化学族组成分析进一步了解了热解油内在化学族组成和含量，对热解油的内在性质有了更为深入理解；气相色谱分析对热解油中富含的苯、甲苯和二甲苯进行绝对定量，为热解油提取BTX化工原料的经济性提供了参考。

During log-growth phase,the activity of SOD increases with culture time,and at the same time the activities of the other two enzymes also increase.

通过比较几种提取方法的效果，认为利用甲苯破壁法提取SOD复合酶具有一定的可行性。

With toluene instead of benzene, the improved copper soap method possesses less toxicity, good stability and repeatability.

对铜皂法进行改进，用甲苯代替了苯，改进的铜皂法具有毒性小、结果稳定、重复性好的优点。

In the present dissertation, a surfactant-templated mesoporous silica molecular sieve with high pore volume, high porosity and narrow bimodal mesopore size distribution was synthesized for the first time in a reaction system, which was used usually in the synthesis of mesoporous MCM-41 molecular sieves, by a judiciously controlled two-phase sol-gel processing under basic conditions.

在本论文中，我们通过对一个通常用于制备介孔MCM-41分子筛的反应体系中正硅酸乙酯水解与缩合反应相对速率的精确调控，首次在弱碱性体系中合成了一种具有高孔隙率、大孔体积和双介孔孔分布特征的新型二氧化硅分子筛材料，简记为BMS，并对BMS二氧化硅分子筛中双介孔结构形成的原因及各种可能对其结构和性质产生影响的合成因素如Ammonia／silica摩尔比、组分浓度的变化、表面活性剂烷基链长度的调节、辅助有机物均三甲苯的引入、催化剂的结构和性质、溶剂和助溶剂的极性和用量、老化和干燥条件的变化及合成后水热处理等，利用不同的测试手段如XRD，SEM，TEM，〓Si MAS NMR，TG-DTA，N〓吸附测试等进行了系统的表征研究。

Toluene was tested at three different laser wavelengths (532 nm, 610 nm, 800 nm) using shunt-wound double NIT-PO, in which the measured nonlinear refractive index at 532 nm was coincide with the value in nonlinear optics handbook, and exhibited the reliability of our experiment.

在本论文中，我们利用并联式系统对甲苯在三个不同的波段（532nm， 610nm， 800nm）进行了测量，其中532nm的测量结果与非线性光学手册的值相近，从而也验证了改进后的实验系统的可靠性。

Constant sea is Sinopec Maoming Petrochemical Co., Ltd.,"the South China Sea card" downstream products distribution unit, responsible for the delivery to the factory, price concessions, now the main products are:"the South China Sea card,"# 58,# 56 Food packaging wax,# 58,# 56 all refined white wax,# 58,# 56 white semi-refined paraffin, wax saponification, chlorinated paraffin, solvent oil, white oil, toluene.

茂名市恒海石油化工有限公司是中国石化茂名石油化工股份有限公司《南海牌》产品下游经销单位，负责送货到厂，价格优惠，现在主要产品有：《南海牌》58#、56#食品包装蜡，58#、56#全精炼白石蜡，58#、56#半精炼白石蜡，皂化蜡、氯化石蜡、溶剂油、白油、甲苯。

Constant for Chemical Industry Co., Ltd Main Products, distribution products include; various models of the entire refinery, semi-refined products and liquid paraffin wax, wax soap, solvent oil, toluene, xylene and other petrochemical products.

恒承实业有限公司主营化工产品，经销产品包括；各种型号的全精炼、半精炼石蜡产品以及液蜡、皂蜡、溶剂油、甲苯、二甲苯等石油化工产品。

Firstly, micro-thermal calorimeters were used to qualitatively analyze the thermochemistry behaviour of reactants system under adiabatic mode; Subsequently a series of toluene nitration experiments were carried out in an isothermal reaction calorimeter to study the influences of different operating conditions such as stirring speed feeding rate and setting temperature and so on . The thermal hazard assessment of toluene nitration was derived from the measured calorimetric data, the rate of the reaction the adiabatic temperature increase △T_ad and maximal temperature attainable MTSR_max in a runaway situation can also been derived.

首先采用微量热分析仪对反应体系在绝热状态下的热行为进行分析；再采用等温条件下的反应量热器实验研究不同的工艺条件如搅拌速度、加料速度和设定温度等参数对反应结果的影响；结合热分析数据和RCle数据，对甲苯的一段硝化过程进行了初步的热危险分析，推导出反应速率方程、反应失控条件下的绝热温升△T_和反应所能达到的最大温度MTSR等参数。

A kind of non-equilibrium plasma engendered by silent discharge was utilized to dispose polluted air containing volatile hydrocarbons (hexane,cyclohexane,benzene and toluene) vapor.

采用无声放电产生的非平衡态等离子体，对含有易挥发性有机化合物正己烷、环己烷、苯和甲苯4种典型的烃类废气的空气进行了处理。

The metal sample is dissolved with HCl H 2O 2, and the dissolved nickel is separated from other activation products by anion exchange. Nickel is then complexed with pealetyldioxime in the alkaline solution, extracted with toluene, and finally determined by liquid scintillation counter.

先将样品用HCl H2 O2 溶液溶解、再经阴离子交换、氢氧化物沉淀分离后，在碱性溶液中用丁二酮肟配合镍、甲苯萃取、稀HCl反萃后再用液体闪烁计数器测定反萃液中6 3Ni放射性活度、原子吸收分光光度计测定金属中稳定镍。

They weren't aggressive, but I yelled and threw a rock in their direction to get them off the trail and away from me, just in case.

他们没有侵略性，但我大喊，并在他们的方向扔石头让他们过的线索，远离我，以防万一。

In slot 2 in your bag put wrapping paper, quantity does not matter in this case.

在你的书包里槽2把包装纸、数量无关紧要。