In China, 20ᵗʰ century, a unit of area, = 1 square centimeter. This romanization is obsolete. In today's pinyin, “square centimeter” would be rendered píngfāng límǐ 平方厘米.
United Nations, 1966.
Copyright © 2000-2017 Sizes, Inc. All rights reserved.
Last revised: 14 March 2017.