同义词
1)twin beam overhead crane,双梁行车2)heavy-duty bicycle with double-top frames,双梁载重自行车3)twin beam overhead crane with explosion proof device,防爆双梁行车4)twin beam overhead crane in bridge type,双梁桥式行车5)twin beam overhead crane with single hock,单钩双梁行车6)twin beam overhead in bridge type,桥式双梁行车
