总结了物理机械防治技术，进行了内吸药剂打孔注射法和树冠喷雾防治试验。
Summarized the physical machinery preventing and controlling technology by carrying on the experiments of medicament drilling to a hole and crown atomization.
鼠害的防治技术主要有农业防治、化学防治、物理机械防治、生物防治以及免疫不育等高新技术防治。
They are key points in rodent pest control. The methods of rodent pest control include agricultural control, chemical control, physical control and immuno-contraception.
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