接下来，我把每个月的平均成本加起来，计算出每个月的平均值，从而来追踪一段时间内的变化情况。
My next step is to sum up and average the monthly costing figure to track its change over time.
可是西哈特福德(离波士顿和纽约(New York)各两个小时的车程)的生活成本比全国的平均值高20%。
However, the cost of living in West Hartford (which is two hours from Boston and New York) is 20% more than the national average.
供应链中的某些参数，如需求、价格、成本等可能偏离供应链的预期值或者平均值，这就产生了供应链方差风险。
Some parameters chain may deviate from the expectancy value or average in the supply chain, such as demand, price, cost, and so on, and then there is a variance risk.
应用结果表明，与投运前五年平均值相比，供水成本节约了20%，漏损率从原来的28%降到8%。
The application results indicated that the water supply cost was saved 20%, leakage rate was reduced from 28% to 8% comparing with average values of the 5 years before the operation.
应用结果表明，与投运前五年平均值相比，供水成本节约了20%，漏损率从原来的28%降到8%。
The application results indicated that the water supply cost was saved 20%, leakage rate was reduced from 28% to 8% comparing with average values of the 5 years before the operation.
应用推荐