It dedicated that cypermethrin had fine control effect to the Cyrtotrachelus buqueti.显示了氯氰菊酯对长足大竹象具有较好的防治效果.The optimal temperature and pH for CDT 3 degrading cypermethrin is 30 ℃, pH 8.0, indifferently.在温度30℃, pH8.0时,CD...
The corrosive thing of rubber film is observed in fuel press adjuster.通过疲劳实验,观察燃油压力调节器中橡胶膜片受腐蚀的情况.Minute vertical and lateral adjuster is built in the nozzle.喷嘴安装横向和纵向的为调节装置.There is a sensor - adjuster on one side to ad...