搜索 - 科创

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不要老是相信购买的试剂,尤其是国产的,当你百思不得其解的时候,也许正是劣质的试剂让你郁闷. 10.自己的试剂,要贴好标签,否则当别人把你的重要产品乱扔之时,哭都来不及. 11.关旋蒸的时候,注意一定要先拔真空

共有50项专利被立案审理，最重要的是有关真空体中使用灯丝的问题。　　在此之前，尽管爱迪生花了5年时间奋斗阻挡，但索耶—曼1880年1月9日提出的专利还是在1885年5月12日得到批准。

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