up former的意思|示意

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up former相关短语

1、 up tra former 升压器

2、 step-up tra former 升压变压器

3、 step-up autotra former 升压自耦变压器

4、 step-up pulse tra former 升压脉冲变压器

5、 step-up-&am -down tra former 固定升降变压器