語種：日英
分類：專業語詞類
標籤：專有名詞
索引：解釋
名詞: n.
A double-filament is a light bulb with two filaments. It is one of the big six inventions in electric bulbs, created by Toshiba in 1921.
A double-filament is a light bulb with two filaments. It is one of the big six inventions in electric bulbs, created by Toshiba in 1921.
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2017 Inventec Besta Co.,Ltd. All rights reserved 無敵科技股份有限公司版權所有
