herbicides的例句（herbicides在句子中的用法）

• Arsenic is widely associated with the manufature of herbicides and pesticides. 砷广泛地应用于除草剂和杀虫剂的制造中.
• Resistance of weeds to certain herbicides is beginning toshow up. 杂草对某些除草剂的抗药性已显现出来.
• There is a lot of concern over the amount of herbicides and pesticides used in farming. 人们对农业上灭草剂和杀虫剂的用量非常担忧.
• Among the many regulatory substances in use we have controllable and selective herbicides. 在所有的许多调节物质中,有控制性的和选择性的除草剂.