l ch meaning in English
外科学硕士
Examples
- L ch : logical channel
逻辑信道 - The effects of different current density on the alloying element content were discussed . based on the results , the optimal process condition was confirmed : pb ~ ( 2 + ) 80 - 90 g / l sn ~ ( 2 + ) 7 - 15 g / l ch _ 4so _ 3 ( dissociative ) 130 - 150 g / l composite additive 12 ml / l current density 2 - 6 a / dm ~ 2
采用hull槽实验方法确定了甲磺酸体系电沉积pb - sn合金镀层的电流密度范围,并探讨了不同沉积电流密度下pb 、 sn合金含量的变化规律。