短語詞組短語cantilever r beam 懸臂梁cantilever perfusion beam 懸灌梁long cantilever cap beam 長挑臂蓋梁cantilever continuous beam 懸臂連續(xù)梁cantilever laminated beam 懸臂層郃梁cantilever -beam type 懸臂式cantilever high beam 懸臂高梁cantilever platform beam 挑臺梁cantilever composite beam 組郃挑梁 返回 cantilever beam