Study on the preparation and flocculation performance of the modified composite flocculant based on the polyferrics.
聚铁基改性复合絮凝剂的制备及其絮凝性能。
The virtues and defects, the components and preparation, the performance characteristics of pasty propellants are described, and the key points of study on the propellant is suggested.
介绍了膏状推进剂的优缺点以及组成、工艺和性能特点，并提出了研究建议。
The filling property and dispersion performance of the tri-screw extruder in preparation of color particles based on the experimental study were discussed.
文章论述了色母粒制备中三螺杆挤出机的填充和分散特性。
The preparation and performance study of nanomaterials based on physics and chemistry are the foundation of the whole nanotechnology.
其中，以物理和化学为理论基础的纳米材料的制备和性能研究是整个纳米科技的基础。
The preparation and performance study of nanomaterials based on physics and chemistry are the foundation of the whole nanotechnology.
其中，以物理和化学为理论基础的纳米材料的制备和性能研究是整个纳米科技的基础。
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