ultrafine powders

常见例句

Main processes for preparing ultrafine powders, application and development state were presented.
介绍了超细粉末的主要制备方法、应用和发展。
The results showed that the sample by adding the ultrafine powders of silica aerogel increased the tensile strength 54%, the elongation at break 64%, decreased the abrasion loss 20%.
试验结果表明，加入湿法白炭黑超细粉的试样拉伸强度比添加气相法白炭黑者提高了54％，扯断伸长率提高了64％，磨耗量降低了20％。
It is becoming clear that to successfully compete in the 21st century, countries will require their chemical engineers making tremendous efforts to improve their mastery of ultrafine powders.
人们越来越清楚，要想在21世纪的竞争中获胜，世界各国都希望他们的化学工程师做出巨大的努力来加强他们在超细粉体领域的优势。