双梁桥式起重机 Double beam bridge crane ; [机] Double girder overhead crane ; twin beam overhead bridge crane ; two beam overhead crane
电动双梁桥式起重机 electric double-beam bridge crane ; electrical bibeam bridge crane ; electric two-beam bridge crane ; twin beam overhead bridge crane
手动双梁起重机 hand-drive double beam crane ; hand-operated two-beam crane
双梁翼 two spar wing ; wing
双梁机翼 double spar ; wing
双梁吊车 double-beam crane
双梁行车 twin beam overhead crane
双梁桥架 [机] double girder bridge
联结双梁 connecting beam
这种机器叫手动双梁起重机。
介绍了基于系统分析的双梁桥式起重机桥架结构优化设计方法。
This paper introduces an optimization design method for overhead traveling crane structure with double bridge which is based on system analysis.
桥架的金属结构由主梁和端梁组成，分为单主梁桥架和双梁桥架两类。
Bridge's metal structure from the main beam and side beams, divided into single-and dual-beam bridge girder bridge types.
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