insecticides造句

• Systemic insecticides have shown particular promise .
  内吸杀虫剂看来特别有效。
• Both aldrin and chlordane are valuable insecticides .
  艾氏剂和氯丹都是重要的杀虫剂。
• Resistance to insecticides has been apparent for many decades .
  杀虫剂抗药性的出现已有数十年。
• Farm workers frequently come in contact with these insecticides .
  农场工人常常接触这些杀虫剂。
• Insecticides are widely used for controlling most insect pests .
  杀虫剂广泛应用于防治大多数害虫。
• Spraying the area around buildings with an insecticide also prevents insect buildup .
  建筑物周围喷洒杀虫药也能防止昆虫孳生。
• Spraying the area around buildings with an insecticide also prevents insect build up .
  建筑物周围洒布杀虫药也能防止昆虫孳生。
• As preventive, spray plants with systemic insecticide or fumigate them regularly .
  作为预防措施，要用内吸杀虫剂对植物定期喷洒，或熏蒸。
• I have decided to specialize in plant chemicals that can be used for insecticides .
  我已经下决心专门研究可以用作杀虫剂的植物中的化学物质。
• Spraying with insecticides and fungicides may be necessary to control any insects and diseases .
  也许有必要喷洒杀虫剂和杀菌剂以防止病虫害。
• Approximately 40% of the applied insecticide in each orchard was residual in the soil profiles .
  大约每一果园施用的40杀虫剂残留在土壤剖面中。
• It is common practice to screen for this toxicity in the evaluation of the safety of new insecticides .
  一般在评价新杀虫剂的安全性时，常检查这一毒性。
• The control of cucurbit wilt has been based on chemical insecticides applied for beetle control .
  防治葫芦科植物萎蔫病，至今仍依靠使用化学药剂防治甲虫。
• Plants provide many chemicals that can be useful to humans, especially for drugs and insecticides .
  植物能为人类提供有用的化学物质，特别是药物和杀虫剂。
• I was in the most unbelievable snarl this morning over--of all things--a truckload of insecticide !
  今天早上，真想不到，为了一卡车杀虫剂的事搞得我晕头转向！
• In official recommendations, the range and quantity of insecticide used each season have been limited to what is needed .
  每季节杀虫剂的使用范围和使用量由官方规定，以保证限制在所需要的范围内。
• The gardener sprayed insecticide on the rose - bushes
  园丁给玫瑰丛喷上了杀虫剂。
• Fermentation , isolation and properties of insecticide no . 48b
  分离及性质初步研究
• The progress in the research of photoactivated insecticides
  光活化杀虫剂研究进展
• The insecticide was put out of the child ' s reach
  杀虫剂放在孩子拿不到的地方。