成环的例句（成环在句子中的用法）

• This causes environmental damage when the topsoil is washed away by the rains. 雨水冲走表层土壤会造成环境破坏。
• The river loops around the city. 河流围绕城市形成环型.
• The effects of reactant mole ratio , catalyst dosage , microwave irradiationtimeyield of cyclohexanone glycol ketal were investigated. 用十二水硫酸铁铵作催化剂, 微波辐射催化合成环己酮乙二醇缩酮.
• Trimethylsilyl cyclopropyl others can react with the gel the cyclopropanols when Lewis acid as ZnX 2. 环丙烷基硅醚在卤化锌的作用下能够与硅胶反应生成环丙基醇.
• Note there are three cusps sewn into a synthetic ring. 可见三个瓣叶围绕形成环.
• They can also become rolling loops or bipedal, walking robots. 链型机器人也可以组装成环型的滚动机器人或两足步行机器人.
• The popular press tends to represent him as an environmental guru. 大众媒体往往把他描绘成环保领袖。
• ...the ability to meet human needs indefinitely without degrading the environment. 无限制地满足人类需求而不造成环境退化的能力