短語(yǔ)詞組短語(yǔ)signaling g line circuit 信號(hào)線(xiàn)電路signaling g line 信號(hào)線(xiàn)signaling line circuit 信號(hào)線(xiàn)電路Line Signaling 線(xiàn)路信令LSE Line Signaling Equipment 線(xiàn)路信令設(shè)備analog line signaling 模擬用戶(hù)信令line signaling unit 線(xiàn)路信令單元Subscriber line signaling 用戶(hù)線(xiàn)信令line signaling system 線(xiàn)路信令系統(tǒng) 返回 signal line