| 1. | They kept up a good head of steam .
他们把蒸气压力保持在所需的水平上。 |
| 2. | Vapour pressure is an important product specification .
蒸气压是一个重要的产品规格。 |
| 3. | It provides a convenient scale length for barometer .
这为气压计提供了适宜的刻度长度。 |
| 4. | The barometer began to fall .
气压计开始下降。 |
| 5. | Pressure differences are indicated on weather maps by isobars .
在气象图上气压差用等压线表示。 |
| 6. | The barometer is falling .
气压正在下降。 |
| 7. | How fast they spin can be calculated from pressure maps .
它们的旋转速度可以根据气压图计算出来。 |
| 8. | Fixed cistern barometers are used as a standard for checking .
固定槽式气压计可以作为标准件去检验。 |
| 9. | Aneroid readings must be adjusted for temperature and humidity .
空盒气压计读数亦须作温度改正和湿度改正。 |
| 10. | The surface pressure at the centre of the tornado is shown in figure 7.26 .
陆龙卷中心的地面气压如图7.26所示。 |
