อากาศร้อนๆ ขนก็ร่วง ทริกเกอร์กินหญ้ากำจัด Hairball อร่อยมั๊ยมาดูกันครับ?
The nature of the corrosion process. Corrosive attack is the result of chemical reaction at the interface between the material and the associated environment. At its simplest it can be regarded in terms of a normal bulk reaction, with the free energy for the reaction, and the thermodynamic activity...
from: http://ezinearticles.com/?Corrosion-Resistant-Aircraft-Components&id=5210297
