用hardness testing machine造句子,“hardness testing machine”造句
來源:國語幫 2.05W
The surface layers are characterized by means of the optical microscope, X ray diffraction, transmission electronic microscope, and micro hardness testing machine.
mechanical hardness testing machine for testing industrial materials
This tester is a popular type Rockwell hardness testing machine, the construction is firm and reliable and safe, operating convenience etc. characteristics.