Example sentences of "maintain over a [adj] [noun] [prep] " in BNC.
Next page| No | Sentence |
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| 1 | Complex adaptations have developed because in certain circumstances the same selection pressure has been maintained over a long period of time . |
| 2 | In the theory which accompanied this series it was shown that the function of regulated systems was to convert a ‘ rough ’ d.c. input voltage into a stable d.c. output voltage which would be maintained over a wide range of load current requirements as well as input voltage variations . |
| 3 | This rate is maintained over a wide range of aortic pressures by means of afferent and efferent arteriolar autoregulatory mechanisms , such as angiotensin II , renal prostaglandins , contractile myoepithelium , and the glomerular mesangium . |
| 4 | Improvement was maintained over a follow-up period of six months . |
| 5 | As long as an overwhelming military presence existed , a measure of peace — peace with resentment , but peace just the same — was maintained over a large area of Central and Eastern Europe . |