Based on the analysis of mechanism of urban ground fissure, hazard assessment index system is established.According to the type of urban land, the maneuverability of vulnerability assessment is good.是什么意思_Based on the analysis of mechanism of urban ground fissure, hazard assessment index system is established.According to the type of urban land, the maneuverability of vulnerability assessment is good.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句