问题
问答题 简答题
显微硬度试验在产品检验及研究工作中的主要用途有哪些？
答案
参考答案：
（1）显微硬度能测定多相组织金属材料中各组成相的硬度。
（2）对于某些金相显微镜下难以判断的组织，可借鉴显微硬度测定来鉴别。
（3）测定某些表层组织的硬度。
（4）在材料内部成份偏析上的应用。
（5）对某些较薄片材料的硬度测定。
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显微硬度试验在产品检验及研究工作中的主要用途有哪些？
参考答案：
（1）显微硬度能测定多相组织金属材料中各组成相的硬度。
（2）对于某些金相显微镜下难以判断的组织，可借鉴显微硬度测定来鉴别。
（3）测定某些表层组织的硬度。
（4）在材料内部成份偏析上的应用。
（5）对某些较薄片材料的硬度测定。
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| Do you know the 3-year-old girl named Dong Xinyi? She has a bright nickname (绰号) "Little Strong Girl" who looked after her disabled father. And many people all over China were moved by her. When she was several months old, her father had an accident on his way home while riding his motorcycle and 1 his legs. Two years later, her mother left her father 2 the poor life. As an old saying goes, "The children of poor people do housework early." Little Xinyi had to do family chores, such as cooking noodles, carrying water, cleaning rooms and washing clothes. She took good care of her father alone. The little girl brings happiness and hope to her poor family. And luckily, the local government has 3 medical treatment for her father. At the same time, the government is 4 planning to raise money for the girl's 5 . Now, Dong Xinyi has got a chance to go to school like other kids. | |||
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