人们使用轧机把材料加工成各种形状，如圆棒材、方棒材和矩形棒材。 A rolling mill is used to form the material into various form such as round rod, square or rectangular bar.
数组量数横为行，纵为列的矩形排列，如矩阵中 A rectangular arrangement of quantities in rows and columns, as in a matrix.
床一件为躺靠和睡觉用的家具，典型的由一个平的，矩形的柜架和放在弹簧上的垫子组成 A piece of furniture for reclining and sleeping, typically consisting of a flat, rectangular frame and a mattress resting on springs.
