Although the manganese treatment could not resist PPO activity obviously, decreased the contend of total hydroxybenzene, thus reduced the incidence of fruit rot and brown.

锰处理虽然没有明显抑制贮藏期间桃果实PPO活性的上升，但抑制了桃总酚含量的上升，从而也减缓了褐变的发生。

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Manganese dust in the extremely hot air of the valley, covers the rocks over the centuries and colors them dark brown.

锰元素在山谷极端地热的空气下变成灰尘，覆盖在岩石上有数个世纪之久，然后变成了茶褐色。

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