1) preparation steps
工艺环节
1.
Objective To study the effect of preparation steps on the concentration of ferulic acid in Angelica Intravenous Injection by reverse phase High Performance Liquid Chromatography.
目的探讨工艺环节对当归注射液中阿魏酸含量的影响。
2) key of technology
关键工艺环节
3) technology lay of energy utilization
能量利用工艺环节
4) technology adjustment
工艺调节
6) saving nickel technics
节镍工艺
1.
This text has introducedthe saving nickel technics based on Zn-Fe alloyfor decorate chromeplate rock-bottom:normal Cu/Ni/Cr technics changed into Zn -Fe/alkali/Ni/Cr ;top grade product half Ni/high sulfur Ni/wholebright Ni/Cr can change into Zn-Fe/mediumnickel/bright Ni/Cr .
镍是装饰镀铬组合工艺的中间镀层,用量较大,而镍价居高不下,节镍工艺倍受关注。
补充资料：采气工艺(见天然气开采工艺)
采气工艺(见天然气开采工艺)
gas production technology
，一‘J\匕乙吕天然气开采工艺pro以uetionteehnology)见
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条