chemical prevention meaning in Chinese

化学防治

The result of chemical prevention tests was not very effective
此外，化学杀菌剂林间防治效果不明显。
Under current conditions , chemical prevention and control is still an indispensable measure
在目前的环境情况下，化学防治仍是一个必不可少的重要措施。
Non - chemical prevention and control mosquito breeding can be forestalled by killing the insect at its adult orand larvalpupal stages
把蚊子的成虫或及幼虫蛹杀灭，可防止蚊子滋生。
Pests and nuisance causing animals are disinfested judiciously to avoid unnecessary disturbance to the ecological system . non - chemical prevention and control
本署会以审慎的方法消灭虫鼠及有害的动物，以免不必要地扰乱生态环境。
Meanwhile , overall prevention and control measures ( environment conditions , geological location , etc . ) should be adopted based on practical conditions ( environment harnessing , ecological prevention and control , physical prevention and control , and chemical prevention and control , etc . ) and insect ecology to keep the harm of pests at acceptable level
同时结合实际情况（环境条件、地理位置等），以昆虫生态学为基础，将有害昆虫采用综合防治措施（环境治理、生态防治、物理防治、化学防治等一切有效手段）控制于不足造成危害水平。