| 释义 |
硬度yìngdù
1.固体坚硬的程度,也就是固体对磨损和外力所能引起的形变的抵抗能力的大小。{hardness; rigidity; quality or property of being hard, or the capability of a solid to resist abrasion or deformation caused by external forces}
2.水中含钙盐、镁盐等盐类的多少,叫做水的硬度。{hardness of water, determined by the content of salts, e.g. calcium salts, magnesium salts, etc.} |