bgbroad gagebroad gaugewide gage宽轨: broad gauge; wide gauge距: distance宽轨距铁路: broad gaug railway; broad gauge railway宽轨: broad gauge; wide gauge◇宽轨铁路 broad-gauge railway轨距: [铁道] gauge; track gauge 标准轨距 standard gauge下载手机词典可随时随地查词查翻译