试题与答案

在一般情况下,焊接电流越大,电弧的刚直性越大;周围冷气流的流速越大,电弧的刚直性越小

题型:判断题

题目:

在一般情况下,焊接电流越大,电弧的刚直性越大;周围冷气流的流速越大,电弧的刚直性越小。

答案:

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参考答案:A

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