bowstring girderbowstring truss弓弦式: bow-string桁架: truss弓弦式桁梁: bow and string girder弓弦式: bow-string◇弓弦式大梁 bow-string girder; 弓弦式梁 bow-string beam; 弓弦式橋 [土] bowstring bridge弓弦式大梁: bowstring girder下載手機詞典可隨時隨地查詞查翻譯
