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The mechanism of the improvement and discoloring the adsorbents andthe additive was elucidate.
从理论上阐述了提高粉煤灰基质多孔吸附材料吸附、脱色性能的机理.
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Please have the side out for airing under sun to prevent it from discoloring.
如果您想到太阳下晒一晒您的地毯,请背面晒,不要正面晒,防止燥色.
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The act of discoloring something. cause to become sallow, as of complexion.
一种使事物变色的行为。使肤色变成菜的颜色。
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