Need certain cost of Ghana , characters soft and floury has explanation in the article finality.

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At the same time analysing rural market current situation and characteristic, discuss by policy face and the different enterprise angle soft and floury, the deoxidation peasant who excavates a sum consumes truly.

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The function is not good , the pump rotation rate is partial to height since device system operation is unreasonable and the pump entrance vapor erodes, that the vapor erodes , the vapor erodes the entry occurrence part in the pump the day afer tomorrow happened , is able to have air bubble in the water, that it may pound machinery on one hand seals off the outside surface soft and floury , makes it's surface damage appear on; That another aspect may make fitting that astiring sound is encircled by also contain air bubble in flow soft and floury film, can not form the stable flow film , brings about the trunk friction that fitting that astiring sound is encircled by face , makes machinery seal damage.

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