The existing problems and application prospects of Aluminium welding with straight polarity direct current method are sketched out in this paper.
并简述了直流正极性焊接铝合金所存在的问题和应用前景。
How to measure the recording signal current is basically a key problem to the Equivalent Direct current Method.
记录信号电流的计量是磁记录计量另一基本问题，也是等效直流法准确计量的一个关键。
How to measure the recording signal current is basically a key problem to the Equivalent Direct current Method.
记录信号电流的计量是磁记录计量另一基本问题，也是等效直流法准确计量的一个关键。
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