An initial investigation showed her seatbelt had broken and a passenger safety bar did not fit tightly enough at the Chaohua Park near the city of Chongqing.
据重庆市朝华文化公园的初步调查显示，她座位上的安全带已经断裂，乘客安全扶手也没有套牢。%。
Chaohua Coal Mine adopts the technology of injecting Malisan material to reinforce broken roof. The method makes the roof more completed and steady and has achieved good results.
超化矿采用注射马丽散材料加固破碎顶板技术，使帮顶的完整性和稳定性加强，取得了很好的效果。
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