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伴音中频
 伴音中频
el. sound intermediate frequency
| 陷波
 陷波
mil., air.def. notch; wave trap
| 元件
 元件
el.mach. component
 I元件
auto.ctrl. integral element; I element
 P元件
auto.ctrl. proportional element; P element

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伴音中频
el. sound intermediate frequency
伴音中频
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