urban ecological security

• 城市生态安全

urban ecological security的用法和样例：

例句

1. The status quo of China's forestry indicates that forestry development does not meet the requirement for maintaining ecological security.
   林业现状说明，林业发展与维护生态安全的要求极不适应。
2. Finally, research methods for rheology and mutation of ecological safety are concluded, and further problems are brought forward.
   最后总结生态安全渐变和突变的方法研究，并提出进一步需要解决的问题。