chemical shim

• 化学补偿(剂),化学控制(剂)

chemical shim的用法和样例：

例句

1. 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。