溶剂

The invention prepares the compound hollow spheres by taking the polymer hollow sphere as a template and combining sol-gel, settlement reaction and redox process through the method of forcing interface or surface settlement, removes the template polymer through high sintering or selective extraction of a solvent to obtain the hollow spheres of minerals, metals and organic matters.

本发明以聚合物中空球为模板结合溶胶-凝胶、沉降反应、氧化还原过程，通过强制界面的方法或表面沉降方法制备了的复合中空球，高温烧结或溶剂选择性抽提将模板聚合物除去得到无机物、金属、有机物中空球。

The coal is ground so that it can be mixed into a coal derived recycle solvent to form a coal-oil slurry feed.

煤炭是地面，使之可以混合成煤衍生循环溶剂形成煤炭石油浆饲料。

In order to know more about the microcosmic structure of the important biochemical model molecule formamide in aqueous solution, the Optimized Potentials for Liquid Simulations-All Atom model were used in the molecular dynamics simulation for the aqueous solution of FM in the whole concentration range. The radial distribution functions of the solutions were obtained. The interaction between water molecule and FM molecule was analyzed and calculated.

为了解重要的生化模型甲酰胺在水溶液中的微观结构，采用全原子力场在全浓度范围内对甲酰胺溶液进行了分子动力学模拟，得到了溶液的径向分布函数，分析计算了溶质和溶剂分子间的相互作用，对甲酰胺和水分子的氢键缔合情况进行了分析。

To be a designed-for-the-environment clean air solvent, the formulator must achieve maximum performance with less chemistry.

环保因素：为获得环保型空气清洁溶剂，焊剂配方应保证在较低的化学成分下获得最优的性能。

This allows the formulator to exercise wide latitude in selecting the types and amount of plasticizers or solvents to be used and still obtain a clean machining formulation.

这就允许技术人员在选择增塑剂或溶剂的类型，或选择用于清洁的产品时有很大的选择余地。

Secondly,a mixture of acetone and methyl formate was added into the methanol solution of sodium methoxide to prepare sodium formyl acetone by Claisen reaction.

以金属钠为原料，甲醇为溶剂，先制成甲醇钠的饱和甲醇溶液，再滴加丙酮和甲酸甲酯进行Claisen酯缩合制得丁酮烯醇钠，最后在强酸作用下与甲醇进行缩醛化反应合成了4，4-二甲氧基-2-丁酮，过程总收率达到73.1%，纯度98.7%。

Then, N-for-aspartame was obtained from the reaction of 3-formyl-4-carboxymethyl-1,3-oxazolidine-5-one and L-phenylalanine methylester hydrochloric acid under sodium acetate anhydrous in ethyl acetate, and the target product was prepared after removing formyl in the mixture system of hydrochloric acid, methanol and water, the yield of aspartame reaches 89.2%.

最后，用3-甲酰-4-羰基口恶唑烷-5-酮乙酸与L-苯丙氨酸甲酯盐酸盐在溶剂中进行接肽反应，然后在甲醇/盐酸混合体系中进行脱甲酰保护基，从而得到最终目标产物，产率为89.2%。

Inert solvent was selected to extract corresponding extractives from different kinds of biomass. Pyrolysis of the extractives was studied on thermogravimetric analyzer coupled with Fourier Transform Infrared spectroscopy.

利用惰性溶剂从生物质中提取得到相应抽提物，在热重红外联用仪上研究了抽提物的热裂解行为，并探讨了其对生物质热裂解的影响。

A colorless, flammable liquid, C6H14, derived from the fractional distillation of petroleum and used as a solvent and as a ''.

已烷一种无色可燃液体，c6h14，从石油的分馏中提取，用作溶剂和低''。

A colorless, flammable liquid, C6H14, derived from the fractional distillation of petroleum and used as a solvent and as a working fluid in low-temperature ''.

已烷一种无色可燃液体，c6h14，从石油的分馏中提取，用作溶剂和低温度气压计中的工作流体

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了