形截面管 rectangular section: 矩形断面; 矩形剖面rectangular tube: 长方通; 矩形断面管; 矩形管bar rectangular section: 矩形断面梁; 矩形梁briquette of rectangular section: 矩形断面坯块rectangular cross section: 矩形断面; 矩形横断面下载手机词典可随时随地查词查翻译