jìng
弪
radian (old term)
Tone colorsmāmámǎmàma
Meanings
1 sense · 2 examplesnoun
radian (old term); a unit for measuring angles
archaicAn obsolete term for the modern unit '弧度' (húdù). Primarily found in older mathematical and engineering texts.
Zài在
jiù旧
jiào教
cái材
zhōng中
,
jiǎo角
dù度
yǒu有
shí时
yòng用
jìng弳
biǎo表
shì示
。
In old textbooks, angles were sometimes expressed in radians.
Zhè这
gè个
jiǎo角
de的
dà大
xiǎo小
shì是
ππ
//
22
jìng弳
。
The size of this angle is π/2 radians.