cargo boom〔名词〕吊货杆,货物清单详细»
cargo boom〔名词〕船上吊杆;n.起重臂,货物起重臂详细»
吊杆boom;boom spar;crane boom;jib详细»
吊杆boom;gib;steeve;suspension link详细»
吊杆crane boom;gib;gibbet;hanger rod;hanging support;jib;pike pole;sag rod;say tie;steeve;suspension member;suspension rod详细»
吊杆boom climbing pole davit derrick derrick boom swing bar详细»