短語詞組短語vertical overhead contact system 垂直吊線接觸網(wǎng);多邊形架空接觸網(wǎng)overhead pipeline system 架空熱力管線overhead sprinkling system 高架噴灌系統(tǒng)rtical overhead contact system 多邊形架空接觸網(wǎng)overhead duct system 高架風道系統(tǒng)overhead heating system 上分式供熱系統(tǒng)overhead contact system 架空接觸網(wǎng);接觸網(wǎng)single overhead contact system 架空単線式電車線路polygonal overhead contact system 多邊形架空接觸網(wǎng) 返回 overhead system