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汉语拼音：píng háng liù miàn tǐ

底面是平行四边形的四棱柱。侧棱与底面垂直的平行六面体称为直平行六面体，侧棱与底面不垂直的称为斜平行六面体。长方体和正方体都是平行六面体的特例。平行六面体有下列性质(1)相对两个面平行且全等；(2)四条对角线相交于一点，且被交点平分；(3)四条对角线的平方和等于各棱的平方和。

• PACKAGES MADE OF PLASTIC MATERIALS PARALLELEPIPEDAL PACKAGES FOR FRUIT AND VEGETABLES. DIMENSIONS, SPECIFICATIONS AND TESTS.

  塑料包装.水和蔬菜平行六面体包装.尺寸.规范.试验

• PACKAGING. GENERAL. ARRANGEMENT OF PARALLELEPIPEDIC PACKAGES OF FRESH FRUITS AND VEGETABLES IN LAND TRANSPORT VEHICLES.

  包装.总则.地面运输车辆中新鲜水果和蔬菜平行六面体包装的排列方法

• plastic packaging . re - usable parallelepipedal packaging for fruit and vegetables . specifications and tests.

  塑料包装。水果和蔬菜重复使用的平行六面体包装。规范和试验。

• STEEL WINE FERMENTATION VATS. FACTORY-BUILT PARALLELEPIPEDIC VATS.

  钢制葡萄酒发酵桶.工厂制造的平行六面体酒桶

• To the short ends of the mobile plate are fixed the parallelepiped by bolts.

  对移动板块的短结束被门闩修理平行六面体。

• Fresh fruits and vegetables; Arrangement of parallelepipedic packages in land transport vehicles

  新鲜水果和蔬菜.陆路运输车辆上平行六面体包装件的排列

• Hydraulic fluid power; test code for determination of airborne noise levels; part 3: pumps; method using a parallelepiped microphone array

  液压传动空气噪声级测定的试验规范第3部分：泵采用平行六面体传声器阵列的方法

• Smallest outer-contained parallel hexahedron and the smallest outer-contained cylinder

  最小外包容平行六面体和最小外包容圆柱

• On the problem of the minimum outer enclosure parallelepiped and cylinder

  关于最小外包容平行六面体和最小外包容圆柱问题