Water availability is measured in terms of water activity ( aw ).

水分的可利用性是用术语水活度 aw 的概念来表示的.

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Soil water availability is one of the key factors on the productivity of lithosols.

土壤水分有效性的高低是制约石渣土生产能力的关键因素之一.

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We should also pay attention to changes in water availability of a layout.

也答夺目版面水分是否有保持.

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