3. 脫葉磷：defoaming tank 除泡箱 | defoliant 脫葉磷 | deforestor 伐木機
4. 落葉劑 落葉劑：defloration 摘花; 落花 落花; 摘花 Y | defoliant 落葉劑 落葉劑 Y | defoliation 脫葉落葉 剪葉; 落葉; 採葉 Y
defoliant詞典解釋
1. （尤用于戰時(shí)的）脫葉劑 A defoliant is a chemical used on trees and plants to make all their leaves fall off. Defoliants are especially used in war to remove protection from an enemy.
defoliant英英釋義
noun
1. a chemical that is sprayed on plants and causes their leaves to fall off