sp ir al 螺旋
pulmonary surfactant-associated protein al sp-al 肺表面活性物质相关蛋白al
Therefore, the thermodynamic analysis for heat exchange in a preheater of SP kiln is given quantitatively, conveniently and directly, and the direction for improving the energy utilization is al…
据此可定量、简便、直观地对SP赛预热器的换热情况进行热力学分析，并为热利用的改善指明方向。
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