biological pest control detail 虫害生物防治
biological pest control 虫害生物防治
biological l pest control 虫害生物防治
CIBC also serves as a clearing-house for the export and import of biological agents for pest control world-wide.
加拿大帝国商业银行还作为世界范围内防治害虫的生物制剂进出口的交换所。
In this paper predator-prey systems with periodic impulsive effect concerning pest control are proposed through biological control and chemical control.
摘要本文通过生物控制和化学控制提出了具有周期脉冲效应与害虫控制的捕食系统。
It is an effective method of biological control to use insect virus to prevent pest.
利用昆虫病毒防治害虫是生物防治的一种有效方法。
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