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- contact insecticide effect 触杀作用
- Study on the Method of Contact Insecticide Effective Bioassay on Fleas 杀虫剂对蚤类的毒力测定方法研究
- Study on the method of contact insecticide effective bioassay on fleas and it's application 蚤类对杀虫剂敏感性测定方法的研究与应用
- marry into money 傍大款,嫁入豪门
- A colorless contact insecticide,C14H9Cl5,toxic to human beings and animals when swallowed or absorbed through the skin. It has been banned in the United States for most uses since1972. 滴滴涕一种无色的、经接触传递的杀虫药剂,C14H9Cl5,当吞食或被表皮吸收时对人类和动物有毒。自从1972年以来,在美国许多应用上已被禁用。
- A colorless contact insecticide, C14H9Cl5, toxic to human beings and animals when swallowed or absorbed through the skin.It has been banned in the United States for most uses since1972. 滴滴涕一种无色的、经接触传递的杀虫药剂,C14H9Cl5,当吞食或被表皮吸收时对人类和动物有毒。自从1972年以来,在美国许多应用上已被禁用
- A colorless contact insecticide, C14H9Cl5, toxic to human beings and animals when swallowed or absorbed through the skin. It has been banned in the United States for most uses since1972. 滴滴涕一种无色的、经接触传递的杀虫药剂,C14H9Cl5,当吞食或被表皮吸收时对人类和动物有毒。自从1972年以来,在美国许多应用上已被禁用
- The extracts of Xanthium sibiricum had insecticidal effect on armyworm. 苍耳提取物对粘虫具有一定的杀虫效果。
- Experiment of Insecticide Effect on Cabbage Moth 杀虫剂对小菜蛾的防治研究
- The decrease in insecticidal effect of ricinine after modification indicated that the cyanogens group played an important role in insecticidal effect of ricinine. 蓖麻碱改性后杀虫作用下降表明氰基团在蓖麻碱的杀虫作用中起了很重要的作用。
- The airplane dusted the crops with an insecticide. 飞机给农作物撒农药。
- The extract by petroleum ether has the slowest insecticidal effect, but the correct mortality of A. indiscriminate on the fifth day after the treatment could also reach 64.59 percent. 石油醚提取物的毒杀效果最慢,但处理第5天后同安钮夜蛾的校正死亡率也能达到64.;59%25。
- Application of residual contact insecticides early in peek of flies breeding could drop flies population density more than later, and could be cost saving and laboursaving comparing with space spray. 在苍蝇繁殖高峰前施用滞留性喷洒,可以取得更佳的灭蝇效果;在获得相同灭蝇效果的情况下滞留性喷洒可以比空间喷洒节省人力和药费。结论:滞留性喷洒是蝇类防制中值得推荐的灭蝇方法。
- She cast her eyes down to avoid direct eye contact. 她垂下双目以避免对视。
- Is action of lasting effect insecticide how long? 长效杀虫剂作用是多长时间?
- A discernible mark or effect left by contact with something. 痕迹与某物接触后留下的可辨认的标记或效果
- Punishment had very little effect on him. 惩罚对他没有什么效果。
- Studies on the fungistasis and insecticidal effects of the alkaloid extracts from Peganum multisectum Bobr. 多裂骆驼蓬生物碱类物质抑菌杀虫活性研究。
- It's certain that every effect must have a cause. 无疑,每个结果必定有其原因。
- That poor madam has lost all contact with reality. 那位可怜的夫人脱离了现实生活。