Automation has obsoleted many unskilled workers .

自动化使很多非技术工人受到淘汰。

The results showed that co-processing obsoleted pesticide in cement kilns were more beneficial to sustainable development of environment , by contraries , incinerators treatment system were impact to environment .

结果表明：水泥窑共处置废弃农药利于环境的可持续发展，而焚烧炉处置对环境的影响较大。