All plans were compared according to the planning target volume coverage, dose-volume histogram and other dosimetric parameters of normal tissues.

根据计划靶区的等剂量分布、体积-剂量直方图以及其他的剂量学指标，比较两种不同治疗计划的优劣。

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Between 2003 and 2008, China's forest coverage registered a net increase of 20.54 million hectares and forest stock volume rose by 1.123 billion cubic meters.

2003至2008年，森林面积净增2054万公顷，森林蓄积量净增11.23亿立方米。

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With its comprehensive coverage, this volume will appeal not only to immunologists and clinicians but also to cell and molecular biologists.

由于它的全面的保险，这卷将不仅对免疫学家和临床医师而且对细胞和分子生物学家请求。

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These events caused a change in both the volume of coverage, which increased dramatically, and also in the stories.

BBC: Viewpoint: US media lax on drones

The volume of MMR coverage was also "huge", with 1, 257 stories in the national press in 2002, according to science writer Dr Ben Goldacre.

BBC: MMR: How parents feel now about avoiding jabs

Recent years have witnessed a dramatic decline in both volume and extent, with the 2012 coverage - like the Southern Hemisphere - setting a "record" for the modern era at 3.41 million sq km.

BBC: Earliest satellite maps of Antarctic and Arctic sea-ice