| ประโยคภาษาจีน : 中文句子 | 
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|  lùn wén论文  dǎo chū导出  le了  cǎi qū采区  wěn dìng xìng稳定性  de的  pàn bié shì判别式  bìng并  tí chū提出  le了  jù tǐ具体  de的  yù fáng cuò shī预防措施 | 
| The discriminant of the stability of the air flow at mining areas was educed in this paper, and idiographic prevent measures were put forward. |