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1.On the foundation of Vega GIS systematic characteristic , we adopt its secondary development component and advanced OOP language - -C ++ language as foundation of studying.
本文在国产GIS——织女星GIS系统特点的基础上,确定采用其二次开发构件和先进的面向对象语言——C++语言作为研究基础,为实现一个技术先进、性能优良、功能完善的灌区GIS打下基础。收藏指正
2.When zero sequence or high secondary harmonic current component appear in the circuit, the total current in the shield is zero, no electromagnetic interference with outside.
当线路出现零序或高次谐波电流分量时，屏蔽层内电流总和为零，不对外界产生电磁干扰。收藏指正
3.The grain boundary secondary phase is an imporrant microstructure component in AIN ceram-ics,having significant effect on thermal conductivity.
晶界第二相是AIN陶瓷显微结构的重要组成部分，对AIN陶瓷的热导率有重大的影响。收藏指正
4.Catalysts for use in secondary reformer were prepared with high temperature calcined alumina as carrier,nickel as active component,and rare earth oxides with high melting point as promotor.
以高温烧结氧化铝为载体 ,镍为活性组份 ,高熔点稀土氧化物为助剂制备的二段转化炉催化剂具有使用强度高 ,耐热性能好 ,转化活性稳定、床层阻力降低等特点。收藏指正
5.In this paper,the structure and sealing mechanics of primary seal and secondary seal are separately introduced and the sealing effectiveness of primary seal with the secondary seal installed in the floating roof tank has been compared. The sealing mechanics of secondary seal in the respect of controlling the surface temperature of liquid stored and its change as well as the light component loss induced in reducing the wind load is especially analyzed.
对比了外浮顶油罐一次密封与加装二次密封的密封效果,分别介绍了一次密封、二次密封的结构及密封机理,着重从对储液表面温度及变化的控制以及降低风荷载引起的油气损耗等方面分析了二次密封装置的机理。收藏指正
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