suspension rod〔名词〕吊杆详细»
suspension rod〔名词〕吊杆详细»
suspension rod悬杆,吊材详细»
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»