residual contact poison

例句：

1. 1. The worker was exposedto a residual contact poison while working onthe chemical plant.
   这名工人在化工厂工作时暴露于一种残留接触毒物。
2. 2.The study found that some pesticidescan become residual contact poisons when theyare not properly disposed of.
   研究发现，一些农药在使用后如果没有妥善处理，可能会变成残留接触毒物。
3. 3. The companyhas implemented stricter safety protocols toprevent employees from coming into contact with residualcontact poisons.
   该公司已实施更严格的安全协议，以防止员工接触到残留接触毒物。