Since 1987, late rice is planted in extensive area. The meteorological factors influencing the variation of grain yield per unit area from 1987 on differ obviously with those before 1987.

1987年大面积种植单季晚稻以来，影响粮食单位面积产量变化的气象条件与1987年之前有着明显的差异。

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The intensity and range of extensive area of plastic points, which centralizes in the upper soil layers, of foundation reinforced by short piles is similar with those of natural foundation.

短桩加固地基与天然地基具有相似的塑性开展强度及范围，且集中在上部土层。

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Better procurement practices is an area where WHO and UNICEF have extensive experience and some lessons to offer, as you will be hearing later.

较好采购做法是世卫组织和儿童基金会可提供丰富经验和某些教训的一个领域，稍后你们会听到介绍。

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"Significant ground scraping and landscaping have been undertaken over an extensive area at and around the location, with new dirt roads established, " the report said.

CNN: STORY HIGHLIGHTS

However, he added: "That fell within a 5km radius which is an extensive area and, if you know the area and the topography around the Ulster Hospital, it is significant and it covers a wide scope in terms of the general nature of the terrain".

BBC: Police disciplined over James Fenton investigation

One 800 Mhz cell site can propagate a signal across an extensive geographic area.

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