英语语法分析

It has been suggested that most of theophyllines adverse effects are due to the drugs nonselective PDE-inhibitory actions.

目前认为茶碱类药物毒副作用的产生与其非特异性地抑制磷酸二酯酶（PDE）同工酶有关。

Glyphosate is a broad spectrum, nonselective, and post-emergence herbicide. It is used more and more widely used in agriculture.

草甘膦是一种广谱、非选择性芽后除草剂，它被越来越广泛地应用于农业。

Glyphosate is a nonselective herbicide, it can eradicate many weeds and safety for cane crop by using protective shield during spraying.

草甘膦是灭生性除草剂。使用时采用防护措施定向喷施，就能达到有选择地灭除杂草而对作物安全的目的。