| 21. | Data must pass in both directions so both transmitters and receivers are used. |
| 由于数据必须在两个方向上流通，所以发送器和接收器都要使用。
|
| 22. | Having enough data in hand, we can set to work. |
| 手头有足够的资料我们可以开始工作了。
|
| 23. | Can you set up a data base? |
| 你能建一个数据库吗?
|
| 24. | The data have been taken from official records. |
| 资料取自官方记录。
|
| 25. | In the absence of exact data , these discussions are bootless. |
| 缺乏精确资料的情况下，这些讨论是徒劳的。
|
| 26. | No ready technical data were available, but we managed to go without. |
| 我们没有现成的技术资料，但仍设法干下去了。
|
| 27. | He placed unreservedly all the data he has collected at the disposal of a friend. |
| 他毫无保留地把自己收集的全部资料提供给朋友使用。
|
| 28. | processing raw data , statistics, etc |
| 处理原始数据, 统计资料等
|
| 29. | feed raw data into a computer |
| 把原始数据输入计算机
|
| 30. | retrieve data from a disk |
| 检索储存在磁盘中的资料
|