To know the phenotypic variation of Oryza rufipogon populations in Gaozhou, and lay a good foundation for reasonable protection of the rare resource and use it effectively.

了解高州普通野生稻群体及其居群间的表型变异情况，为这一宝贵资源的合理保护和有效利用奠定良好基础。

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Oppositifolious character of maize is a new variation type, whose leaf and kernel are both oppositifolious, which is a high-yield breeding germplasm resource.

玉米的对生性状是一个新的变异类型，其叶片和果穗均为对生，是高产育种极其珍贵的种质资源。

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The cell delay variation (CDV) between the source traffic point and UPC control point has a significant impact on the resource allocation, CAC and UPC control in an ATM network.

源流量点和UPC控制点间的信元延迟变化（CDV）对ATM网络的资源分配、CAC和UPC控制都有着重要的影响。

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The idea for the image - a variation on the idea of the resource footprint - comes from Dr Julian Allwood and colleagues at Cambridge University, including his PhD students.

BBC: Go Figure: Why does every person need 200kg of steel a year?