It summarizes the process design, equipment selection and operation condition of mid low low temperature shift section in an 810 4t/ a ammonia plant.
就8万吨级中、低、低变换系统的工艺设计、设备选型及运行工况进行总结分析。
By placing different rare earth oxide in different soil depth and different section across a slope in the field plots, the temporal and spatial process of soil erosion is studied under simulated rainfall situation.
通过人工模拟降雨,利用分段和分层结合布设不同的稀土氧化物(Rare-EarthOxide),研究次降雨条件下坡面侵蚀的演变过程。
Local pressurization is a novel method for eliminating porosity occurred in casting with thick-section in die casting process.
局部加压方法是压铸中用于消除铸件厚壁处缩孔缺陷的一种新工艺。
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