| 1. | It was obvious that the operation could not be sustained over the long term .
显然这个行动不能持续时间过长。 |
| 2. | It permits detection of events that have only a microsecond duration .
它可用来检测持续时间仅一微秒的动态过程。 |
| 3. | Smaller particles were more active, but persisted for a shorter period of time .
较小的颗粒更为活泼，但持续时间较短。 |
| 4. | The length of time of the extraction and the particle size are both pertinent .
提取的持续时间和微粒的大小都恰到好处。 |
| 5. | The persistence of tge infection in a herd has been mentioned by several authors .
几位学者报道过在一个猪场中TGE传染的持续时间。 |
| 6. | The duration of the quenching pulse should exceed the recovery time of the counter .
淬火脉冲的持续时间应当超过计数器的恢复时间。 |
| 7. | The duration of the end-plate current parallels the lifetime for channel closing .
终极电流的持续时间与通道关闭的持续时间相平行。 |
| 8. | For the basin analyst a crucial question concerns the duration and nature of the after-effects of plate interaction .
对于盆地分析者来说，关键问题在于板块相互作用后效的持续时间和性质。 |
| 9. | The signal thus received will no longer look like a square wave but will be distorted in shape and spread out in time .
这样收到的信号看起来不再象矩形波，而是受到畸变，并且持续时间延长了。 |
| 10. | Photoflash'bulbs which usually have a duration of about 20 milliseconds above half peak intensity can be used either singly or flashed in sequence .
光强能在大约20毫秒持续时间内保持在半峰值以上的闪光灯，既可用于单次闪光，也可用于连续闪光。 |
