常見(jiàn)例句雙語(yǔ)例句Main processes for preparing ultrafine powders, application and development state were presented.介紹了超細(xì)粉末的主要制備方法、應(yīng)用和發(fā)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%.試騐結(jié)果表明，加入溼法白炭黑超細(xì)粉的試樣拉伸強(qiáng)度比添加氣相法白炭黑者提高了54％，扯斷伸長(zhǎng)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.人們?cè)絹?lái)越清楚，要想在21世紀(jì)的競(jìng)爭(zhēng)中獲勝，世界各國(guó)都希望他們的化學(xué)工程師做出巨大的努力來(lái)加強(qiáng)他們?cè)诔?xì)粉躰領(lǐng)域的優(yōu)勢(shì)。 返回 ultrafine powders