脉冲点焊
参考答案：
在一个焊接循环中，通过两个以上焊接电流脉冲的点焊。
In the context of company law, explain the meaning of the following duties owed by directors to their companies:
(a) the duty to promote the success of the company; (3 marks)
引发“着痹”的病邪是（）。
A.风邪
B.寒邪
C.暑邪
D.湿邪
E.火邪
