| ประโยคภาษาจีน : 中文句子 | 
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|  yīn cǐ因此  kāi cǎi开采  méi céng煤层  zì rán自然  fā huǒ发火  shì是  yǐng xiǎng影响  líng wǔ灵武  kuàng qū矿区  zōng综  fàng放  miàn面  chéng gōng成功  ān quán安全  kāi cǎi开采  de的  zhǔ yào yīn sù主要因素  zhī yī之一 | 
| And there is so much particle coal in gob by using fully-mechanized technology in this coal seam that it is bad for high efficiency and safety mining. |