The corrosion condition of brass tubes used in condenser in recycle cooling water system with AC impedance was explored.
探讨交流阻抗法研究凝汽器黄铜管在循环冷却水系统中的腐蚀问题。
In this paper, the optimum value of the compensation condenser for ac are welding machines are proved and given in forms of mathematical formulae.
近年来，焊机的节能已成为一个十分重要的课题。本文就交流弧焊机的电容补偿之最佳取值问题作了论征，并导出了数学表达式。
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