| 1. | Port - backup land use study 港口后勤用地研究 |
| 2. | Off - port backup land 离岸后勤用地 |
| 3. | Port backup land 港口后勤用地 |
| 4. | Clouds and rain in florida forced nasa to land the shuttle at a backup landing site 佛罗里达州雷雨天气使得美国宇航局在备用着陆地着陆航天飞机。 |
| 5. | The ascent stage rescue backup landing site near jiuquan is no longer required for operation 位于酒泉附近的副著陆场承担的飞船上升段应急返回搜救任务解除。 |
| 6. | Clouds and rain in florida forced nasa to land the shuttle at a backup landing site 弗罗里达连日的阴雨连绵不得不让国家航空和宇宙航行局启用这个备用降落场。 |
| 7. | Clouds and rain in florida forced nasa to land the shuttle at a backup landing site 佛罗里达的乌云和下雨使得国家航空和宇宙航行局只能把飞船降落在后备着陆点。 |
| 8. | Clouds and rain in florida forced nasa to land the shuttle at a backup landing site 佛罗里达的乌云与降雨使得国家航空航天局只好让航天飞机在这个备用着陆点着陆。 |