| ประโยคภาษาจีน : 中文句子 | 
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|  zhī jīn织金  méi tián煤田  xī nán西南  kuàng qū矿区  lóng tán龙潭  zǔ组  cháng xīng长兴  zǔ组  guǎng fàn广泛  fā yù发育  líng tiě kuàng菱铁矿  céng层 | 
| Siderite is vastly developed in the Longtan, Changxing formations in southwestern mine area, Zhijin coalfield. |