Scheduling irrigation for maize under different irrigation methods in minqin oasis 沙漠绿洲区不同灌水方式条件下玉米灌溉制度研究
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The results showed that the microstructure of ceramic tiles varied with different heating temperatures and cooling methods 结果表明,在不同受热温度和冷却方式条件下,釉面内墙砖的显微结构会发生改变。
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The paper ' s primary study work is aiming at dynamics and kinematics performance of large extensible satellite ' s antenna ' s expanding process at two expanding orderliness and three expanding mode . gains simulating calculated result 本文的主要研究工作是在两种卫星天线展开规律、三种天线展开方式条件下,对大型可展开卫星天线在展开过程中的动力学以及运动学性能进行了仿真分析,获得了仿真计算结果。