ประโยคภาษาจีน : 中文句子 |
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shí jiàn 实践 zhèng míng 证明 guāng bào 光爆 máo pēn 锚喷 zhī hù 支护 jì shù 技术 jiě jué 解决 le 了 xiǎo 小 tiě shān 铁山 kuàng 矿 cháng qī yǐ lái 长期以来 xiàng dào 巷道 wéi hù 维护 kùn nan 困难 de 的 wèn tí 问题 |
It is proved in practice that the existed difficult problem of maintaining lane for a long time has been solved. |