Physical properties are those properties which are in the material and cannot be permanently altered without changing the material itself.
举一反三
- The physical properties are those properties of a substance that can be observed with changing the substance into other substances.
- The physical properties are those properties of a substance that can be observed with changing the substance into other substances. A: 正确 B: 错误
- Material properties depend on the material microstructure, which in turn results from its compositions and processing.
- Most composite materials consist of a selected or reinforcing material and a compatible resin to obtain the specific characteristics and properties desired.
- the factors that affect the ultimate stress are ( ). A: Load B: Material properties C: Section size D: Working conditions