石炭系

carboniferous system / coal measure (geology)

to connect / to relate to / to tie up / to bind / to be (literary)

system / department / faculty

to tie / to fasten / to button up

to connect / to arrest / to worry

surname Shi / abbr. for Shijiazhuang 石家莊|石家庄[Shi2 jia1 zhuang1]

dry measure for grain equal to ten dou 斗 / ten pecks / one hundred liters

rock / stone / stone inscription / one of the eight categories of ancient musical instruments 八音[ba1 yin1]

dry measure for grain equal to ten dou 斗[dou3]; one hundred liters / ancient pr. [shi2]

wood charcoal / coal

coal (old)