基本解釋鉸接頂梁詞組短語短語articulated u roof beam 鉸接頂梁articulated e roof beam 鉸接頂梁articulated roof beam更多詞組專業(yè)釋義能源科學技術(shù)鉸接頂梁經(jīng)濟學鉸接頂梁