Based on the forming methods of surfaces in the mechanical elements, the paper studies the patterns of motion in mass-reducing processes of solid materials.
基于构成机械零件的几何表面形成方法的论述，具体分析了固体材料质量减少成形工艺的运动方式。
Pyridine-TPD and XRD results indicated that sulfiding temperature, sulfiding and reducing processes affected acidity and agglomerate state of activity species.
吡啶-TPD和XRD 表征结果证明，硫化温度和硫化还原工序，会改变催化剂表面酸性和硫化态活性物种在催化剂表面的聚集状态。
Pyridine-TPD and XRD results indicated that sulfiding temperature, sulfiding and reducing processes affected acidity and agglomerate state of activity species.
吡啶-TPD和XRD 表征结果证明，硫化温度和硫化还原工序，会改变催化剂表面酸性和硫化态活性物种在催化剂表面的聚集状态。
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