For this reason, Chang'e 4 will study the effect of solar winds on the lunar surface and any mineral found by the spacecraft.

出于这个原因，嫦娥四号将研究太阳风对月球表面的影响，以及航天器发现的任何矿物。

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Since all forms of potassium alum are soluble in water, when the stone is wet or applied to wet skin, an invisible, fine layer of the mineral is rubbed off the stone and applied to the skins surface.

因为各种状态的钾明矾都能溶于水，当把它弄湿或接触湿皮肤时，会有一层肉眼看不见的细腻矿物层从钾明矾表面脱落，吸附到皮肤表面。

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There are natural cotton crystal, mineral, concave surface, the natural normal function of any minor damage, is not a quality problem.

天然水晶内有棉絮、矿质、冰裂、表面凹点、天然轻微破损都属正常现象，不属品质问题。

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To understand the mechanism, Dr Clarke and his collaborators made a synthetic version of the bacterium and discovered that the organism generated a charge, and effected a chemical change, when in direct contact with the mineral surface.

BBC: Bacteria power 'bio-battery' breakthrough

Now, in the urban areas, we're discovering that most of the surface owners also own the mineral rights.

NPR: Drilling for Gas in Dallas-Fort Worth