cai ongatedock pontoondry-dock caissonfloating gategate caissonship caissonship gateship-shape caisson gate浮坞: floating dock门: entrance; exit; door; gate坞门: dock gate (or caisson); dockgateorcaisson; entrance caisson; floodgate浮坞: [船舶工程] floating dock沉箱,坞门: caisson下载手机词典可随时随地查词查翻译
