“Water heating makes up anywhere from 15 to 25 percent of the annual energy usage in a home, ” says Steve Koep, a regional sales manager for Marathon water heaters.
“热水系统的花费在年度家用能源消费总量中占了15%到25%。” 斯帝夫·科普（SteveKoep），马拉松热水器地区销售经理。
This article utilizes the Grey theory to predict the annual power usage of one certain region, based on the power usage data of this region from 1997 to 2007.
本文根据我国某地区1997 ~ 2007年每年用电量数据，运用灰色理论，预测该地区每年的用电量。
The lack of valid credit card is due to the low rate of revolving credit usage, low commission rate from merchants and annual fee waiver policy;
其中信用卡有效收入不足是由我国信用卡循环信用率偏低、商户佣金费率偏低和各家银行信用卡免年费政策的实施导致的；
Owning over 30 machines, annual quantity can reach 2000 tons. The main compositions of fabric are polyester, cotten and spandex. The main usage is for garment.
公司设备先进，技术实力雄厚，拥有针织大圆机三十余台，年均生产涤纶、氨纶、棉类针织面料2000吨以上。
Owning over 30 machines, annual quantity can reach 2000 tons. The main compositions of fabric are polyester, cotten and spandex. The main usage is for garment.
公司设备先进，技术实力雄厚，拥有针织大圆机三十余台，年均生产涤纶、氨纶、棉类针织面料2000吨以上。
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