您要查找的是不是：
- Heading and Altitude Reference System 航向与高度基准系统
- Don't refer to this matter again, please. 请不要再提这件事了。
- We are flying at an altitude of 20000 feet. 我们的飞行高度是20000英尺。
- The airliner flew at an altitude of 20000ft. 客机在两万英尺的高度飞行。
- At this altitude you often get strong winds. 在这一纬度地区，经常有大风。
- The plane flew at an altitude of30000 feet. 飞机在三万英尺的高空飞行。
- This reference book is very useful to our study. 这本参考书对我们的研究很有用。
- Is this reference book of any use to me? 这本参考书对我有用处吗？
- I like to have my reference book within my reach. 我喜欢把参考书放在随手拿得到的地方。
- Tony used no reference books in class. 托尼上课时不使用参考书。
- Evidently shipowner to bear expense refer. 很明显船主应承担此费用。
- There is no further reference to him in her diary. 她的日记中没有进一步提到他。
- Some people develop altitude sickness when climbing high mountains. 有些人在爬高山时会发生高山反应。
- He spoke in reference to the cowboys. 他谈了有关牛仔的事。
- The pilot blacked out for a moment upon reaching such a high altitude. 飞机上升到这样高度时，飞行员昏厥了片刻时间。
- The book is used as a reference book. 这本书被用来做参考书。
- All such books were bought for reference. 所有这些书都是为参考而买的。
- The plane was then flying at an altitude of 8000 feet. 当时飞机在八千英尺的高度飞行。
- No. we normally refer to metric ton. 不，我们通常指公吨。
- Botanists refer this flower to the rose family. 植物学家将这花归入蔷薇科。
