The paper analyzes the harmfulness of saline - alkali soil to trees and woods, and simply elaborates the measures for soil improvement concerning physical, hydrological and chemicalaspects.
分析盐碱地对树木的危害，阐述通过物理、水利和化学土壤改良的措施；
2
Based on these evidences, the essential chemicalaspects of BR free radical damage to rat hepatocyte and the correlationship between BR free radical and formation of pigment gallstone were considered.
根据以上结果，重点讨论了胆红素自由基对肝细胞损伤的化学本质及其与胆结石形成的关系。
3
Owing to many unique performances, flywheel battery has been becoming a new member of the battery family, and has been taking the place of the chemical battery in many aspects.