土壤微团聚体具有影响土壤理化生物性质多方面的作用，可能作为评价土壤肥力水平的综合指标。
Soil microaggregates can influence the soil physical, chemical and biological properties and may be used as an overall index for evaluating the fertility level of soil.
植被覆盖度是衡量地表植被覆盖的一个重要指标，在许多方面作为重要参数输入。
Vegetation fraction is a very important index to score the vegetation coverage on the land surface and is used in many aspects as one of the input parameters.
汽车覆盖件现有的面畸变评价指标均有一定的局限性，难以满足工程实践和理论研究多方面的要求。
There is previously no perfect evaluation criterion that can satisfy the needs of the engineering and research for the surface deflection of automobile outer panels.
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