| 1. | Antimony adds to the rigidity of the casting .
锑能增加铸件的硬度。 |
| 2. | The temper of the clay was right for shaping .
这粘土的硬度适于塑形了。 |
| 3. | This process removes the water hardness .
这一工艺去除水的硬度。 |
| 4. | Lead is one of the softer metals .
铅是硬度较低的金属之一。 |
| 5. | Hardness is caused by divalent metallic cations .
硬度是由一些两价金属阳离子引起的。 |
| 6. | With regard to hardness , the diamond is in a class by itself .
讲硬度，金刚钻是独一无二的。 |
| 7. | Indentation methods of hardness testing comprise two principal groups .
压痕法测定硬度包括两大类。 |
| 8. | This scale is based on the relative abrasiveness of minerals .
此硬度计的依据是矿物的相对研磨能力。 |
| 9. | One simple way of describing strength is in terms of surface hardness .
描述强度的一种最简单方法是以表面硬度来表示。 |
| 10. | The grade of table eggs depends to a major degree on the firmness or gel structure of the albumen .
食用蛋的等级主要决定于蛋清的硬度或凝胶结构。 |
