大多没情况下光滑剂是需要的，以便维持某种化学均衡，否者就会有腐蚀。
Most lubricants are necessary, to maintain a certain chemical balance, or there is corrosion.
Tang-Peronard称，现在我们不可能整理出有多少肥胖症是源起于化学品，有多少是出自于能源不均衡。
Tang-Peronard says that it is impossible, now, to tease out how much of obesity is caused by chemicals, and how much by energy balance.
重点是均衡计算作为理解决定水系统化学成份和无机污染物去向的变量之工具。
Emphasis is on equilibrium calculations as a tool for understanding the variables that govern the chemical composition of aquatic systems and the fate of inorganic pollutants.
聚丙烯（PP）由于具有价格低、原材料丰富、力学均衡性好、耐化学腐蚀等特点，近年来成为最热门的汽车零部件材料。
For many advantages of polypropylene(PP), so it is become the best part material for auto in recent years.
聚丙烯（PP）由于具有价格低、原材料丰富、力学均衡性好、耐化学腐蚀等特点，近年来成为最热门的汽车零部件材料。
For many advantages of polypropylene(PP), so it is become the best part material for auto in recent years.
应用推荐