kuàng kēng
意思解释：（Pit）通常为地层中开采矿床或开采岩石而挖掘的露天矿或开采后的矿区。
开矿挖掘的坑、坑道等。1899年《清议报》五册《论东亚事宜》:“德人占得山东一省矿山，意人则专山西矿坑之利。”1936年《科学画报》第三卷第十九期:“矿坑内所发生的爆炸性气体进入灯内而发火时，所生的热即被罩在火焰外的金…
Exploit a mine the hole of mining, sap. 1899 does Qing Dynasty view a cable 5 by East Asia matters concerned : Dark chloric revive emperor of of envy unconscious broadleaf plant] epiphysis of litter of ㄉ of clam of cough of sour of Zhao sword small-moutheds jar ! 936 year scientific pictorial the 3rd the 19th period: Fly small-mouthed jar of ⑸ of of deep and remote call on seeks Yun of of Qian of of ㄐ cloud quite does fish hawk of ⒒ of to joke protect graceful light a Zhe of badge heart joke Qiang badger Mu Zhen
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