Basically, a composite concrete deck consists of a concrete top slab, flanked on each side by concrete main beams, and a concrete middle beam.是什么意思_Basically, a composite concrete deck consists of a concrete top slab, flanked on each side by concrete main beams, and a concrete middle beam.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句