cost saving
节省费用
节省工程投资
节约成本
成本节约
降成本
成本汇总表
成本撙节
cost saving and benefit enhancing
cost saving and great effects
Function of water saving cost
energy saving and cost control
Energy Saving and Cost Cutting
energy saving and cost decreasing
energy saving and cost lowering
energy saving and cost reduction
actual cost and estimated cost
actual cost over standard cost
65 percent energy saving and heat preservation
A New Understanding on Water Saving Agriculture
A Probe into Warming Green- house Energy- Saving