查询词典 solid geometry

The oxidation of solid biurea with chlorine in aqueous solution to produce azodicarbonamide was experimentally studied in a 1 L agitated glass vessel with a four-blade paddle stirrer. Based on the film theory, a model is first developed for this system by taking the gas-liquid and solid-liquid mass transfer, solid dissolution, and instantaneous reaction between the dissolved reactants into consideration.

在玻璃搅拌反应器中进行了固体联二脲与氯气液相氧化反应生成发泡剂 ADC过程的传质与动力学实验，提出了基于双膜理论的数学模型，以描述这一反应系统所涉及的气液和固液传质、固体溶解以及溶解物在液相中发生瞬间反应，特别是随反应进行固体反应物粒径变小导致固液传质速率减小的复杂过程。

In this paper, the applications of the environmental friendly solid acid catalysts for esterification were studied and the activities of these catalysts were discussed, by which the solid acid ferric sulfate x-hydrate was used first as catalyst in the synthesis of dimethyl fumarate and ethyl chloroacetate and solid super acid SO42-/Fe2O3 was used first as catalyst in the synthesis of ethyl p-nitrobenzoate.

本文研究了对环境友好的固体酸催化剂在酯化反应中的应用，首次以固体酸Fe_2(SO_4)_3·xH_2O为催化剂合成了新型防霉剂富马酸二甲酯和化工原料氯乙酸乙酯，以固体超强酸5O_4~(2-)／Fe_2O_3为催化剂合成了医药中间体对硝基苯甲酸乙酯，并探讨了这些催化剂的催化活性。

Firstly, it is difficult to densify CeO2 based solid electrolyte materials and a sintering temperature above 1600℃is required to prepare dense CeO2 based solid electrolyte materials by the conventional solid-state reaction method;Secondly, doped ceria are brittle materials and have weak mechanical strength, which would be susceptible to fracture due to thermal stresses and mechanical stresses during cell fabrication and operation; Thirdly, electronic conduction will be introduced because of the reduction of Ce4+ under low oxygen partial pressure, which would reduce the output voltage and output power of the cells.

其一，CeO_2基电解质材料难以致密化，用常规的固态反应法制备的CeO_2基电解质粉体需要在1600℃以上烧结才能达到致密化；其二，CeO_2基电解质为脆性材料，机械强度低，使其容易在电池的制造及运行过程中由于热应力及机械应力而破裂；其三，CeO_2基电解质在燃料极一侧由于Ce4+还原为Ce3+出现电子导电，降低电池的输出电压和输出功率，影响电池的性能。

Firstly, it is difficult to densify CeO2 based solid electrolyte materials and a sintering temperature above 1600℃is required to prepare dense CeO2 based solid electrolyte materials by the conventional solid-state reaction method;Secondly, doped ceria are brittle materials and have weak mechanica...

其一，CeO_2基电解质材料难以致密化，用常规的固态反应法制备的CeO_2基电解质粉体需要在1600℃以上烧结才能达到致密化；其二，CeO_2基电解质为脆性材料，机械强度低，使其容易在电池的制造及运行过程中由于热应力及机械应力而破裂；其三，CeO_2基电解质在燃料极一侧由于Ce4+还原为Ce3+出现电子导电，降低电池的输出电压和输出功率，影响电池的性能。

Thixotropic behavior of semi-solid metal with non-dendritic structure was described briefly. The principle of the mesh structure agglomeration and disagglomeration of solid particles of semi-solid metal was discussed in detail.

简述了非枝晶结构半固态金属的触变行为并详细讨论了固相颗粒网状结构形成和破坏的原理。

Article 3 The State shall, in preventing and controlling environmental pollution by solid waste, implement the principles of reducing the discharge of solid waste, fully and rationally utilizing solid waste, and making it hazardless through treatment.

第三条 国家对固体废物污染环境的防治，实行减少固体废物的产生、充分合理利用固定废物和无害化处置固体废物的原则。

Article 3 The State shall, in preventing and controlling environmental pollution by solid wastes, implement the principles of reducing the discharge and harm of solid wastes, fully and rationally utilizing solid wastes and making them hazardless through treatment so as to promote cleaner production and the development of recycling economy.

第三条 国家对固体废物污染环境的防治，实行减少固体废物的产生量和危害性、充分合理利用固体废物和无害化处置固体废物的原则，促进清洁生产和循环经济发展。

The single phase solid solution of hollandite solid-soluted cesium was synthesized in Cs2CO3, BaCO3, Al2O3 and TiO2 as raw materials by high temperature solid phase reaction.

以cs2CO3、BaCO3、Al2O3和TiO2为原料，通过高温固相反应，合成了单相的固溶Cs的碱硬锰矿固溶体。

Methods The solid sections of hepatic segments were obtained by liver incision according to the lines of surface projections of each hepatic fissures The structural landmarks were on lines of section which were observed Results There existed the structural landmarks on the solid sections of median fissure,right interlobar,right anterior lobe,right posterior liver lobe and left hepatic lobe fissures They were showed on the solid images of three dimensional ultrasound.

所谓三维超声立体断层图是指在同一幅超声图像中，同时显示器官或病灶的冠状面和矢状面，或者同时显示冠状面和水平面，或者同时显示矢状面和水平面，构成&蛋糕块&状的立体图像 [1] ，而不是凸凹不平的&立体感觉&。

The following conclusions have been gotten from a large amount of experiments and determinations: Triiodide, pentaiodide, heptaiodide, nonaiodide, undecaiodide of solid tetra-n-butyl ammonium polyiodides and tetrabutyl ammonium bromide polyiodides can be synthesized by solid phase process which is a economic easy way, while its not suitable for synthesizing solid tetramethyl ammonium polyiodides; Solution polyiodides of triiodide, pentaiodide can be synthesized through the complexation process, and TX-10 is a better complexing agent; Triiodide, pentaiodide, heptaiodide resinic polyiodides were synthesized by ion-exchange of resinifying process, and that is a viable easy way.

在大量实验和分析的基础上，可得到以下结论：用固相法可以合成出碘三、碘五、碘七、碘九和碘十一形式的正四丁基多碘化铵固体高聚碘和四丁基多碘化溴化铵固体高聚碘系列化合物，是制备高聚碘的经济、方便的合成方法，但此法对合成四甲基多碘化铵固体高聚碘系列化合物并不适用；TX-10是合成溶液高聚碘较佳的络合剂，通过其络合作用可以合成出碘三和碘五形式的溶液高聚碘；采用树脂法，通过离子交换，合成出了碘三、碘五和碘七形式的树脂高聚碘，此法简单可行。

It was just a normal day of school

那只是上学的普通一天

Which is a very good reference in this issue.

这是一个在这个问题上很好的参考。