pre-emergence
美
英 
英汉解释
例句
Alachlor is a widely used pre-emergence herbicide, and known as a dangerous, recalcitrant and ubiquitous organic contaminant.
甲草胺是一种世界上广泛使用的芽前除草剂,也是普遍存在的危险且难矿化的有机污染物。
Experiments on Control Effects of Pre-emergence Spraying of Herbicides on Maize of Conservation Tillage
保护性耕作条件下播后苗前除草剂防除玉米田杂草试验