ecological condition短语¹⁸⁰⁰⁹⁸⁺¹ 基本例句 生态条件 Through establishing a set of evaluative index systems of urban ecological sustainable development, the article evaluated the ecological condition in Weihai by applying urban ecology. 运用城市生态学方法，通过建立一套可持续发展评价指标体系，对威海市生态环境发展情况进行评价。 chemyq