yǎn
liáng
kuàng
zhī
xué
shì
tóng
zuò
jué
kuàng
zhī
xué
shì

Dynasty: 宋 Author: 苏颂

nán
shān
dào
chǔ
dài
huī
háo
líng
yún
piāo

hǎo
zhuó
shā
lóng
gēng
jiāng
jīn
zhì
yán
biāo