No less than 2 years SMT technics work experience, Be proficient in screen , reflow profile and printing setup and modif至少两年的SMT工艺工作经验,熟练掌握,精通印刷丝网,回流温度曲线及印刷工艺的设定及修改.
The methods of studying flow profile of preparative chromatography were summarized.摘要总结了研究制备色谱流型的4种方法。