The solid reaction synthetic process , sintering properties and phase composition of the lsgm samples are investigated by tg - dta , sem , xrd and the archimedes method . the results reveal that the sintering technology generated significant influence on the sintering properties of the lsgm samples . the optimum synthesis parameters to prepare lsgm electrolyte with a pure perovskite - type structure were ascertained ; the sintering temperature and chemical constitution contributed greatly to the phase composition , the solid solubility limit of lsgm electrolyte increased with increasing of the sintering temperature , and we made lsgm electrolyte of single - perovskite structure above 1400 # 本文采用改进埋烧法制备出la _ ( 0 . 8 ) sr _ ( 0 . 2 ) ga _ ( 1 - y ) mg _ yo _ 3 ( lsgm )电解质，对制备方法与工艺参数、材料结构、电学性能以及热学性能进行了研究，分析了组成、结构与导电性能的关系，探讨了离子传输机制，其目的在于为该类离子导体的进一步研究和应用提供实验和理论依据。
The optimum design method is utilized to design 12 - 5 - 48hb double - horse head beam pumping unit with rear horse head s outline of spiral of archimedes , and the optimum result is analyzed and compared with double - horse head beam pumping unit with rear horse head s outline of three - section circular arc and beam pumping unit 用该优化方法对12 - 5 - 48hb型后驴头为阿基米德螺线双驴头抽油机进行了优化设计，并对优化结果和后驴头为三段圆弧的双驴头抽油机及游梁式抽油机进行对比分析。
Substituted by a densimeter based on the archimedes laws , the online concentration measurement was further modified , and the quality of the measured data was improved with satisfactory accuracy and repeatability . nevertheless , information obtained from the continuous phase ( concentration or supersaturation measurements ) was still not enough to completely define the system 为此，本文基于阿基米德定律，采用密度法改进了实验装置，实现了对结晶过程中溶液浓度或过饱和度的连续在线测量，并提高了测定精度，所测得实验数据具有较好的重现性。
Adopting archimedes number arq as similarity standard , the author determine every kind of similarity scale according to geometry scale 1 / 18 and other limit condition , at the same time , complete organization of model essence , simulation heat source system , design and arrangement of air supply and exhaust system according to every kind of similarity scale 采用热量阿基米德数arq作为相似准则,按照1 / 18的几何比例尺以及其他制约条件确定各种相似比例尺。根据各种相似比例尺完成模型本体结构、模拟热源系统及模型送排风系统的设计和配置。
The software uses two entity configuration methods : extruding and simulating entity cutting in realizing three dimensional configuration , which successfully achieve three dimensional configuration of involute columnar vertical gear , involute columnar helical gear , standard vertical spline , archimedes worm and disco - cam 软件在三维造型功能实现上使用了拉伸和模拟实体切削两种实体造型方法，成功地实现了渐开线圆柱直齿轮、渐开线圆柱斜齿轮、标准直齿条、阿基米德蜗杆和盘形凸轮的三维造型。
