病虫害防治机械
pest control machinery
peripheral speed difference
病虫害防治技术
techniques of pest and disease control
control technology of diseases and insect pests
森林病虫害防治
Keywordforest pest management
forest pest management
水稻病虫害防治
Rice control of diseases and insect pests
病虫害诊断防治
diagnosis and control of maize pest
病虫害综合防治
Integrated control for diseases and insect pests
南瓜常见病虫害的防治
Prevention and Cure of Familiar Disease and Pests
农业病虫害诊断与防治
diagnosis and prevention of diseases and pests agriculture
芝麻病虫害的综合防治
Lntegrated pest management of sesame
结核病防治知识
Knowledge of tuberculosis control and treatment
Knowledge of TB prevention