document.write("A0-装配图.dwg 243.69 KBA3-大带轮.dwg 42.75 KBA3-小V带轮.dwg 34.53 KBA3-轴承座.dwg 33.84 KBA3-轴承盖.dwg 28.05 KBA3-齿轮.dwg 33.72 KBA3-齿轮轴.dwg 54.10 KB封皮.doc 3.18 KB开题报告.doc 59.52 KB设计说明书.doc 242.05 KB");