石炭系

shí tàn xì

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Definitions

  1. 1. carboniferous system
  2. 2. coal measure (geology)

Child Words of 石炭系

系
xì

to connect

炭
tàn

wood charcoal

系
jì

to tie

石
dàn

dry measure for grain equal to ten dou 斗[dǒu]; one hundred liters

石
shí

rock