基本解釋[機(jī)械工程]超細(xì)粉體英漢例句雙語(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%.試驗(yàn)結(jié)果表明，加入濕法白炭黑超細(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)粉體領(lǐng)域的優(yōu)勢(shì)。ultrafine powders更多例句詞組短語(yǔ)短語(yǔ)ultrafine ceramic powders 超細(xì)陶瓷粉末ultrafine carbon powders 超細(xì)炭的ultrafine lead powders 超細(xì)鉛粉ultrafine silica powders 超細(xì)二氧化硅ultrafine glass powders 超細(xì)玻璃粉ultrafine powders更多詞組專業(yè)釋義機(jī)械工程超細(xì)粉體The particle diameters of Yb~(3+):Y_2O_3 ultrafine powders prepared by using the LCS method were about 15-30nm. The optimum technology parameters of LCS were that the value of nitrate : urea was 3:1, and the ignition temperature was about 600℃.以低溫燃燒合成技術(shù)制備Yb~(3+)：Y_2O_3超細(xì)粉體的粒徑為15～30nm，得到較佳的工藝參數(shù)：硝酸鹽：尿素=1：3，點(diǎn)火溫度600℃。