英语语法分析

The acaricidal activity of the extracts of n-butanol and distilled water were not detected in this test.

其中丁香石油醚提取物杀螨活性最为突出，是丁香的主要杀螨活性部位。

Acaricidal activity of methanol extracts from 16 mangrove plants against Panonychus citri McGregor was determined.

采用叶片残毒法测定了16种红树植物甲醇提取物对柑橘红蜘蛛的杀螨活性。

Process for preparing pyridazinone derivatives, and insecticidal, acaricidal, nematicidal, fungicidal compositions.

达嗪酮衍生物的制备方法及其杀虫、杀螨，杀线虫，杀真菌组合物。