No solder ball after reflow 回流过程中不出现焊锡珠
no-clean solder paste 免清洗焊膏
no clean solder wire 免清洗焊锡丝
no-clean solder 免洗软钎焊料
But, no matter how simplistic this design is, you will still have to solder copper pipe joints if you want to tap into your existing hot water system.
但是，这个设计无论多么简单，你总得要焊接铜管，以便接入你现有的热水供应系统。
Remove the solder so that there is no contact between the diodes.
除去焊锡，使得两个二极管不接触。
There is no need to field solder or to struggle with crimp pins.
没有必要到外地焊接或压接针斗争。
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