For low carrier - gas velocities the hetp may become large owing to molecular diffusion effects 载气线速低时, hetp是靠分子扩展影响而变大。
Confirm carrier gas flow through the column . immerse the end of the column in a vial of acetone and check bubbles 确保载气通过了柱子。将柱尾端入丙酮中检查气泡。
Standard test method for the determination of total hydrogen content of uranium oxide powders and pellets by carrier gas extraction 用载气萃取法测定二氧化铀粉末或颗粒中氢的总含量的标准试验方法
Advanced technical ceramics - methods of test for ceramic powders - determination of the oxygen content of non - oxides by thermal extraction with a carrier gas 高技术陶瓷.陶瓷粉未的试验方法.第3部分:用载气热萃取法测定非氧化物中的氧含量
Air conditioners , heat pumps and dehumidifiers with electrically driven compressors - measurement of airborne noise - determination of the sound power level ; german version env 12102 : 1996 空调器热力泵和带电动压缩机的除湿器.载气噪声测量
In addition to the supply of carrier gases for electronics customers in china , air liquide also plays an active role in special gases supply , " gas cabinets " and turnkey piping system engineering 除了电子客户的载气业务,液化空气集团还在电子特种气体、特气气柜以及管道配置系统集成方面扮演着相当重要的角色。
The synthesis of sic whisker is an interesting research activity . - sic whiskers have been grown on si substrate with ni film as its catalyst and a mixture of c2h2 - sih4 - h2 as precursor via chemical vapor deposition technique in this dissertation 本论文采用化学气相沉积方法,以ni薄膜为催化剂,以c2h2 、 sih4为反应气体,以h2为载气,在si基片上生长- sic晶须。
The ci ~ - c : h film was prepared by the means of plasma assistance chemical vapor deposition with hydrocarbon n - butylamine ( ch3ch2ch2ch2nh2 ) as carbon source . the material of carbon source was carried into chemical vapor deposition chamber under pure hydrogen 采用等离子体辅助化学气相沉积方法,以碳氢化合物正丁胺( ch _ 3ch _ 2ch _ 2ch _ 2nh _ 2 )作为碳源物质,用高纯氢气作为载气,将碳源物质携带进入反应室。