Example sentences of "that have been describe [prep] " in BNC.
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| 1 | To do this it is necessary to incorporate the properties of plane waves that have been described in Section 4.4 and illustrated in Figure 4.1 . |
| 2 | Nevertheless it is possible to make a number of guarded conclusions on how the social changes that have been described in this chapter have altered the structure of relationships within the rural population . |
| 3 | The techniques of display , enhancement , filtering and transformation of remotely-sensed images that have been described in this chapter represent only a selection of those available . |
| 4 | The discovery that H pylori increases plasma gastrin concentrations raised the possibility that H pylori may be responsible for the known abnormalities of gastric acid secretion that have been described in patients with duodenal ulcers . |
| 5 | It has been proposed by several workers that trench nephritis was caused by hantavirus , although the classic descriptions from the First World War do not tally closely with the variants of hantavirus infection that have been described in the past 40 years . |
| 6 | The perceptible facial expressions that have been described by other authors are mostly of no real help to us : ( i ) Yawning . |