defoliant

现在分词：

动词现在分词: defogging

更多词形：

名词: defogger | 动词过去式: defogged | 动词过去分词: defogged | 动词现在分词: defogging | 动词第三人称单数: defogs |

单词例句：

Chlorates are a group of toxic substances with significant ecological risk.Last century, sodium chlorate was used to be as non-selective contact herbicides and defoliant in agricultural history.

氯酸盐是一类毒性强氧化剂，上个世纪曾被作为非选择性除草剂和脱叶剂在农业生产中大量施用，近年来，氯酸钾作为龙眼产期调控剂也在反季节龙眼生产中大量应用。

Ortho-phosphate defoliant

脱叶磷

pre-harvest defoliant

收获前落叶剂

(2) by spraying defoliant to control second instar larva, all the defoliants with 3 different concentrations could control the insects indirectly, and the effectiveness was as high as 95%;

通过施用脱叶剂处理叶片的方法来防治2龄若虫，试验所设3种浓度的脱叶剂均能间接起到防治作用，其效果均达到了95%以上。

systemic defoliant

内吸落叶剂

Defoliant: Chemical dust or spray applied to plants to cause their leaves to drop off prematurely.

落叶剂:落叶剂是一种化学粉剂或喷洒剂，施于植物以使树叶提早掉落。

The Preliminary Study on Effect of the Content of Plant Growth Regulator in Cotton Tissue with Defoliant and Its Mechanism

脱叶剂对棉叶中植物生长调节剂含量的影响及脱叶机理初步研究

Litigation about Agent Orange, a defoliant and herbicide used by American forces in the Vietnam war, has provided the most extensive judicial discussion of toxic causation.

关于药剂橙（一种美国部队在越南战争中使用的落叶剂和除劳剂）的立法，已经提供了最广泛的有毒物质因果关系的司法讨论。

Defoliant: a chemical sprayed or dusted on plants to cause the leaves to fall off

落叶剂,一种化学药剂,喷洒在植物上可使叶脱落