| 1. | Polyethylene is an excellent barrier to water vapor .
聚乙烯保水蒸汽的性能良好。 |
| 2. | Warm air can contain more water vapor than cold air .
热空气要较冷空气容纳更多的水蒸汽。 |
| 3. | At the same time, steam was building up within the volcano .
与此同时，在火山中形成了水蒸汽。 |
| 4. | Steam will fill the atmosphere and all life will perish .
水蒸汽将充满大气层，所有的生命都将毁灭。 |
| 5. | Studies show that water vapor quickly permeates plastic packaging material .
研究证明水蒸汽能迅速渗入塑料封装材料。 |
| 6. | Water vapor from the evaporative recovery process may be recondensed, and also reused .
蒸发回收过程产生的水蒸汽可再冷凝，也可再用。 |
| 7. | Successful experiments in this direction have been made with mercury vapor replacing steam .
用水银蒸汽代替水蒸汽的实验已经获得成功。 |
| 8. | Rust is the product of a slow combination of iron with atmospheric oxygen and water vapor .
锈是铁和空气中的氧和水蒸汽缓慢结合的产物。 |
| 9. | The butler was almost invisible in the stream of an antiquated geyser .
在这座古老的热水锅炉产生的水蒸汽中隐隐约约可以看到那个男仆的影子。 |
| 10. | Although water is essentially transparent, water vapor appears white as does ground glass .
虽然水基本上是透明的，但是水蒸汽则呈白色，像毛玻璃一样。 |
