Word: 直径 (zhíjìng) Traditional: 直徑 直径 dictionary entry zhíjìng diameter Full dictionary entry for 直径 Example sentences using 直径 2 sentences, showing page 1 of 1. 圆的直径是半径的两倍。 Yuán de zhíjìng shì bànjìng de liǎngbèi. The diameter of a circle is twice its radius. 请量一下这根管子的直径。 Qǐng liàng yíxià zhè gēn guǎnzi de zhíjìng. Please measure the diameter of this pipe.