The traits of progressive die for IC lead frame have been introduced with emphasis on the ironing stage in layout design and stripping micro-adjustment, safety setup of the structure.
Based on the definition of sensitive actual stage a cubic equation was derived and solved for the liquid compositions on the sensitive actual stages for the rectifying and stripping sections.
从灵敏实际级的定义出发，导出一个立方型方程，解此方程得出精馏段和提馏段的灵敏实际级上的液相组成。
3
The equipment and technology of stripping reaction process with multi stage trickle bed reactor have been developed for production of BPA.