Before carrying out the characterization, one vital procedure is（）
Before carrying out the characterization, one vital procedure is（）
A.forming
B.sampling
C.casting
D.forging
正确答案：sampling
Tag：材料概论
时间：2022-01-18 21:18:27
- 上一篇：（）is a method of thermal analysis which measures the difference in heat flow rate between a sample and inert reference as a function of time and temperature.
- 下一篇：（）is a quantitative spectroscopic technique that measures the elemental composition, empirical formula, chemical state and electronic state of the elements that exist within a material.