metallographical的例句（metallographical在句子中的用法）

• The metallographical structure of the pipes become widmanstatten and its mechanical properties are dropped notably. 管材的金相组织转变为魏氏组织,使其机械性能显著降低.
• The geometrical characteristics analysis of grain is the important base of metallographical analysis. 晶粒的几何特征度量是金属性能分析的重要基础.
• No abnormity was found in the metallographical analysis and hardness test. 金相和硬度分析未发现明显异常组织和硬度分布.