catwalkn. 狹小通道學術名詞窄道：造船工程、機械工程天橋：造船工程狹窄走道：航空太空棚頂鷹架：新聞傳播學檢修通道：土木工程貓道：土木工程英文釋義narrow platform extending out into an auditoriumnarrow pathway high in the air (as above a stage or between parts of a building or along a bridge)