Due to the sound recovery system and effective monitoring system, the electronic wastes in China have produced severe environmental pollution and waste of resources.
由于我国对电子废弃物缺乏健全的回收体系和有效的监管，导致较为严重的环境污染与资源浪费。
2
The economic benefits of recovery of various kinds of waste oils are also described, Finally, the simple and easy ways of treating the wastes generated during the treatment are put forward.
并阐述了宝钢各种不同废油回收的经济效益。最后提出了处理过程中产生三废的简易治理方法。
3
The main challenge of clinical treatment is to dissolve and eliminate masses formed in the brain by cerebral nerve metabolic wastes, and recovery of cerebral nerve function.