| 1. | This process produces corrosion of metals . 这一过程造成金属的腐蚀。 |
| 2. | An oven thermometer uses a metal strip . 加热炉用金属丝作为温度计。 |
| 3. | Electrons in a metal come out of the surface . 金属中的电子逸出表面。 |
| 4. | Cadmium is a good metal for this purpose . 镉是适合这一目的的优良金属。 |
| 5. | Overheated metals may cast badly . 加热过甚的金属可能难浇铸成型。 |
| 6. | Metal sleeves fastened around their stems . 金属套简包着树干。 |
| 7. | This makes a three-ply metal . 这样就制成了一种三层金属材料。 |
| 8. | Another effect of coldness appears in metal . 低温的另一个效应表现在金属中。 |
| 9. | Metal type has been replaced by photocomposition . 金属活字为照相排版所代替。 |
| 10. | Lead is one of the softer metals . 铅是硬度较低的金属之一。 |