短語(yǔ)詞組短語(yǔ)smoke pipe fire detector 煙管式火警探測(cè)設(shè)備photoelectric smoke sensing fire detector 光電感煙火災(zāi)探測(cè)器polymer film smoke fire detector 聚合物薄膜感煙火災(zāi)探測(cè)器 返回 smoke fire detector