摘要
水表因老化,计量精度降低,不合理地更换水表将额外增加企业经济负担。本文介绍美国马里兰州的一种评判水表最佳更换年限的方法.
The accuracy of the water meters will be lowered owning to the aging of the water meters.The company will pay additional cost if the replacement of the water meters is un- reasonable.This article introduces a method to decide the optimum time for replacing the wa- ter meters in Maryland ,USA.
关键词
水表
计量精度
水量损失
更换年限
water meters
measurement accuracy
volume loss of water
cost
replacement
