It is inconceivable that so strong a source of energy can be switched on and off in as little time as 1/30 second . 真难以想象如此强的能源可在130秒这样短的时间内关闭和开启。
Most studies of co effects have administered co at relatively high concentrations for short periods of time . 大多数有关CO影响方面的研究工作是在CO较高浓度下，暴露较短的时间条件下进行的。
Certain goals should be scheduled for accomplishment in a much shorter period and others for a much longer period . 某些目标应当安排在很短的时间内完成，而另一些目标则需要安排较长的期间才能达到。
Refraction usually makes it possible to cover a given area in a shorter time and more economically than with the reflection method . 折射法一般能以比反射法更短的时间，较少的费用勘探一个指定的地区。
In my late regiment if a young officer turned up like that, the other subalterns would bloody well have cut his hair for him . 在我原来那个团里，如果一个青年军官这个模样，部下死活也要把他的头发剪短的。
Trade-unions made a new and firmer start, organizing the army of urban workers to obtain better wages and shorter hours . 工会把城里的工人组织起来，争取较高的工资，较短的工作时间，这是一项崭新而坚定的开端。
It was the season of the shortest nights, and it was not long before the deep obscurity which precedes the day began to yield to the returning light . 这是夜最短的季节，夜间的黑暗开始在晨曦中消退，很快天就亮了。
Before me were the thick lips, fat cheeks, and squat nose standing out with startling clearness against that flaming background . 正对着我的是厚厚的嘴唇，丰满的双颊。在明亮的背景衬托下，那突出的粗短的鼻梁显得格外清晰。
The problem of obtaining an adequate intensity of illumination for photography at extremely short exposure time is reduced with the image converter camera… 要在极短的爆光时间内获得足够的摄影照明光强的问题，可采用弯象管摄影机来解决…
