化学性质

• Don t change physical and chemical property of oil and prolong its working life
  不会改变油液的物理化学性质，延长油液使用命。
• Emphasis is on substitution and elimination reactions and chemistry of the carbonyl group
  重点强调取代、消除反应和含羰基基团的化学性质。
• Any planet with the proper mass , temperature and chemistry ought to develop life
  任一具有适当质量、温度和化学性质的星球都理应孕育有生命。
• Chemical reactions would not do the trick , because all isotopes are chemically identical
  不可能是化学反应，因为所有同位素的化学性质都一样。
• There area number of reasons we might want to know about groundwater chemical quality
  我的理解是：出于地域因素，我们可能想了解地下水的化学性质。
• Laboratory analysis can prove that the knockoff is chemically identical to the name - brand drug
  实验室的分析可以证明仿制品的化学性质等同于品牌药品。
• Definitions of terms and abbreviations relating to physical and chemical characteristics of refuse derived fuel
  有关废弃物再生燃料的物理和化学性质术语和缩略语定义
• Appropriate chemical attribute information , such as structural formula , empirical formula , and molecular weight
  适当的化学性质资料，比如结构式，经验式和分子量等。
• The focus is on the physical and chemical properties of the finishes and the functionalities , which they provide
  关注的焦点是镀层和功能性表现出来的物理和化学性质。
• Desalting experiment of intensely salt - affected soil by planting rice in the da ' an paleochannel of the songnen plain
  长期定位施肥残留养分对作物产量及土壤化学性质的影响