| 1. | When fibers swell, they fill the air spaces and thus reduce ventilation .
一般纤维膨胀后，占据了空隙，因而减少了通气能力。 |
| 2. | Among the fibers are minute air spaces containing a glue-like mixture called ground substance .
纤维之间有微小空隙，内含胶状混合物，叫做基质。 |
| 3. | Their planes were flying in international air space
他们的飞机在国际空域飞行。 |
| 4. | All aircrafts are ordered to clear the air space immediately
所有战机马上清理这片空域 |
| 5. | This area has been declared restricted air space
这片空域被划为禁飞区 |
| 6. | Three cubic meters of air space per prisoner
每个囚犯3立方米的空间 |
| 7. | Three cubic meters of air space per prisoner
每个囚犯3立方米的空间 |
| 8. | As the unidentified crafts entered mexico city air space
当不明飞行物进入墨西哥城领空的时候 |
| 9. | As the unidentified crafts entered mexico city air space
当不明飞行物进入墨西哥城领空的时候 |
| 10. | They were ordered to intensify their patrols to protect our air space
他们奉命加强巡逻，保卫我国的领空。 |
