Анотация

  • Нужно сделать Анотация. Пажалуйста помогите. Сам текст : The hardness of a material affects it's durability - that is, how long it will last. Generally, hard materials are more durable than soft materials, because they are better at better at resisting wear - progressively worsening damage - to their surface. Hardness can be defined in two main ways:
    Scratch hardness describes a materials ability to resist being scratche. Materials with a high degree of scratch hardness are said to have good abrasion resistance - they are good at resisting damage due to abrasion .
    Indentation hardness describes a materials ability to resist indentations - that is, compression in the surface of a material caused by impact.