[Q&A] Catalytic Coking Reformate Blending Edition 20180105
Thread Content
Participation: Reward of 3~5 Wealth points； Correct answer: Reward of 10 wealth points ； Note: This post is valid for 48 hours. Question: What is the hardness of a material? Answer: It refers to the ability of a material to resist being pressed into its surface by other objects. Your participation is the greatest support for our work. Giving roses to others leaves a pleasant fragrance in one’s own hands. https://bbs.hcbbs.com/static/image/hrline/1.gif https://bbs.hcbbs.com/static/image/hrline/2.gif The answers will be announced automatically after two days. “My Device, My Home” – Large-scale Original Photo Sharing Contest (Phase 2) https://bbs.hcbbs.com/forum.php?mod=viewthread&tid=1868167&extra=page%3D1 【Daily Question】Summary post for 2017 on catalytic coking and reforming oil blending versions https://bbs.hcbbs.com/thread-1811219-1-1.html 【Q&A】Summary post for 2017 on catalytic coking and reforming oil blending versions https://bbs.hcbbs.com/thread-1826018-1-1.html
Refers to a material’s ability to resist being pressed by other objects against its surface
Hardness refers to a metal material’s ability to resist the penetration of a hard object into its surface.
The ability of a material to resist the penetration of a hard object into its surface is called hardness
Hardness refers to a metal material’s ability to resist the penetration of a hard object into its surface.
The ability of a material to resist the indentation of a hard object onto its surface is known as hardness.
The ability of a metal material to resist the pressure exerted by a harder object on its surface is called hardness
Refers to a material’s ability to resist being pressed by other objects against its surface
Refers to a material’s ability to resist being pressed by other objects against its surface
Refers to the ability of a material’s surface to resist the indentation by a hard object
Hardness refers to a metal material’s ability to resist the penetration of a hard object into its surface.