铸造船头
cast iron───[材]铸铁,生铁,锻铁
casting rod───钓竿
castle nut───槽顶螺母;开槽螺母
castle nuts───槽顶螺母;开槽螺母
castled───adj.如城堡的;有城堡的
rattled on───喋喋不休地说
mantled plume───[地物]地幔柱