1. Some physico-chemistry properties of ultrafine zinc dust produced by the process of melting vapourizing shock-cooling of metallic zinc are measured.
   采用金属锌加热熔化、蒸发、骤冷工艺制备超细锌粉,对产品的部分理化性能进行了测试。
2. It has been studied that concentrated raw ceramics single -material-china stone ultrafines is mixed and homogenized by technology of computerized process control in this paper.
   本文对经精选的陶瓷单一原料—瓷石,采用以计算机监控的掺和与均化技术,进行的试验研究进行了论述。
3. Trial spinning is described through analysis on the spinnability of trivoltine cocoon waste material, which can produce ultrafine spun silk yarn due to its excellent spinnability.
   对三眠茧绢纺原料的特性进行了可纺性分析，介绍了其试纺情况。试纺结果表明，三眠茧绢纺原料有良好的可纺性，并达到纺超高支绢丝的目的。

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