For all types of injuries measures to improve the efficiency of emergency care will assist in reducing the risk of death, the time for recovery and the level of long-term impairment.
In according with this principle, the separating efficiency should be the product of recovery of each objective minerals separated in the products.
按这一原理，分离效率应是各目的分离物在其分离产品中的采收率的乘积。
3
During the production, using recovery materials can effectively reduce costs and enhance economic efficiency; however, there have some following notes of injection with recovery materials.