Asphalt deposition is one of the important causes for formation damage and production reduction.

原油开采过程中的沥青沉积是引起地层伤害、产液量下降的一个重要原因。

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It will bring a lot of troubles, such as the erosion or damage of pipeline and equipment, even leading casing failure and production reduction.

出砂不仅会导致管线和生产设备磨蚀，甚至会产生套管损坏、油井报废、油井减产、停产等一系列严重后果。

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In line with the single main layer, severe watered out and production reduction occurred after well pattern thickening, a new way must be used to solve the previous problems.

针对温西六区块在井网加密滚动调整后出现的主力层单一、并严重水淹、产量大幅度下降等问题，必须寻求一种新的方法来解决上述出现的开采矛盾。

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In its September Livestock, Dairy and Poultry Outlook, the USDA notes an overall milk production reduction for 2012 based on a lower forecast for milk yield per cow.

FORBES: Dairy

Local media reports suggest the plant has had to cut production because of a reduction in the timber harvest.

CNN: STORY HIGHLIGHTS

Activision raised its fiscal 2012 guidance based on major product launches, strength in retail and digital sales, production efficiencies and cost reduction measures.

FORBES: Valuation Still Attractive For Call Of Duty, WoW Developer