基本解釋光學(xué)煙感器英漢例句雙語(yǔ)例句optical smoke detector更多例句詞組短語(yǔ)短語(yǔ)infrared optical fiber smoke detector 紅外光纖感煙探測(cè)器Point type optical smoke detector 點(diǎn)型光電感煙探測(cè)器optical smoke detector更多詞組