1.Revolutionary self -powered technology never needs battery replacement .
革命性自發電技術,無須更換電池 .
3.Revolutionary self -powered technology never needs battery replacement .
革命性自發電技術,無須更換電池.
4.As Cable WUSB not ,therefore ,WUSB all the equipment must supply their own (self - powered ).
而由於WUSB沒有纜線,因此,所有的WUSB裝置都必須自行供電（self-powered）.
不管是從釋義上還是例句上看，都是形容詞。自發電的，自供電的。
1.Revolutionary self -powered technology never needs battery replacement .
革命性自發電技術,無須更換電池 .
3.Revolutionary self -powered technology never needs battery replacement .
革命性自發電技術,無須更換電池.
4.As Cable WUSB not ,therefore ,WUSB all the equipment must supply their own (self - powered ).
而由於WUSB沒有纜線,因此,所有的WUSB裝置都必須自行供電（self-powered）.
不管是從釋義上還是例句上看，都是形容詞。自發電的，自供電的。