chemical control的用法和樣例：
例句
- Chemical control is the last resort.
化學防治是最後的措施。 - Chemical control technique of stem-bulb rot caused by Fusarium solani in Cycas sp.
蘇鐵鐮刀菌球莖腐爛病化學防治技術研究。 - In this paper, predator-prey systems with periodic impulsive effect concerning pest control are proposed through biological control and chemical control.
摘要本文通過生物控制和化學控制提出了具有周期脈衝效應與害蟲控制的捕食系統。
