搜索 - 科创

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使用Nanodrop检测该样本DNA浓度为894ng/ul。OD260/280=2.12，OD260/230=2.07未做纯化，混有RNA残留故 OD260/280值偏高。做its序列的扩增并不需要...

引用第19楼特斯拉线圈于2009-12-03 12:12发表的 :我感觉不用磁芯或在另一个磁芯上饶He adds 2 separate 3 turn coils on top of the exis...

这个可以很小的.不用查书.本人在555电路中.在接场管与IC中试过用22R电阻560电阻和800R左右电阻.SG3525电路用过10R22R 650R电阻全都能正常使用..脉冲电压?就是通电电压对吧

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