Back to Dictionary
石炭系
shítànxì
1. carboniferous system
2. coal measure (geology)

Character Breakdown

石
shí
stone, rock, mineral
HSK 5 5 丶
炭
tàn
carbon, charcoal, coal
HSK 5 9 丶
系
xì
system; line, link, connection
HSK 1 7 丶

Metadata

Category
Chinese