[电] 涂层灯丝

coated filament的用法和样例：

例句

The light of an electric lamp comes from an incandescent filament.电灯光亮来自白热的灯丝。
If the filament transformer has a center tap, don't use it.如果变压器灯丝绕组有抽头，请不要使用它。

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