defoliation是什么意思？

defoliation

英[ˌdi:ˌfəʊlɪ'eɪʃn] 美[ˌdiˌfoʊlɪ'eɪʃn]

• n. 落叶，采叶，去叶；

动词：defoliate;

例句

• Defoliation is achieved by adding elements which have a greater affinity than iron for oxygen. 脱氧是加进同氧的亲和力比铁更大的元素来实现的.
• Viticulture: Traditional; defoliation and green harvest to have optimal yield control. 种植方式: 传统种植, 疏叶疏果来控制产量.
• Rachis - removing could increase grain weight, while defoliation could lower grain weight. 剪库增加粒重, 而剪源则降低粒重.

柯林斯高阶英汉双解学习词典释义

• VERB
  （尤指战时）使落叶，去掉…的叶子，毁坏(某一地区)的绿色植物
  To defoliate an area or the plants in it means to cause the leaves on the plants to fall off or be destroyed. This is done especially in war to remove protection from an enemy.
  例句
  Dioxin was the ingredient in Agent Orange, used to defoliate Vietnam. 越南战场上用于毁灭林区的“橙剂”，其成分是二氧杂芑。

英英词典释义

• Noun
  1. the loss of foliage
  2. causing the leaves of trees and other plants to fall off (as by the use of chemicals)

行业词典

• 植物学： 脱叶；