Mechanical properties of Materials 材料的机械特性The materials properties can be classified into three major heading:(i) Physical,(ii) Chemical,(iii) Mechanical。 材料的特性可以分为三个重要的部分:1 是物理特性,2 是化学特性,3 是机械特性。Physical Properties物理特性 Density or specific gravity, moisture content, etc., can be classified under this category. 密度或者比重,水分含量等,都被分为这一类的范畴Chemical Properties 化学特性 Many chemical properties come under this category. These include