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单词
petersen coil
释义
pe·ter·sen coil
\ˈpēd.ə(r)sən-\
noun
Usage:
usually capitalized P
Etymology:
probably after Waldemar
Petersen b
1880 German electrical engineer
:
a ground-fault neutralizer for high-voltage power circuits
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更新时间:2025/11/19 0:04:20