self-propelled drag suction dredger的意思|示意
美 / /
英 / /
自行式拖吸式挖泥船
self-propelled drag suction dredger的网络常见释义
自航耙吸挖泥船 ... self-propelled cutter suction dredger自航绞吸挖泥船 self-propelled drag suction dredger自航耙吸挖泥船 self-propelled grab hopper dredger自航抓斗挖泥船 ...