It is concluded that the fluid forming this type of copper-gold deposit is one high oxygen and sulphur fugacity and low-to-moderate temperature acid fluid.

认为形成这一类型矿床的流体是一种高氧逸度、高硫逸度的中低温酸性流体。

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Application in 9 water Wells showed that the effective rate of this low - harm acid fluid system was 100%, and the injection and oil production had noticeably increased.

矿场9口水井的应用表明，研制出的低伤害高效酸液体系有效率100%，起到了显著的增注与增油效果。

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The plugging removal rate of this system has been remarkably improved compared with the acid fluid system, and its field use in 2 sidetracking horizontal Wells are successful.

复合解堵体系的解堵率比酸液的解堵率有较大幅度地提高。经2口侧钻水平井应用表明，该体系解堵效果明显。

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The effects of Proskins firm, constant compression that the company says reduces the buildup of lactic acid and after-sports fluid retention, which a friend who plays rugby confirms (though they do require a wash after every use) are said to apply equally well to those of us who want to wear the product all day.

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Mr. TOM McCOLLOM (Geochemist, University of Colorado): The sulfate salts that are in there come from reaction of the rock with sulfuric acid rather than from evaporation of a fluid.

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