Engineering cost means the manufacture cost of water commodity and its property right income. It comprises the depredation expense of fixed assets, engineering maintenance expense and engineering operational guidance cost.
工程成本是指生产水商品的成本和产权收益，包括固定资产折旧费用、工程维修费用和工程运行管理费用。
参考来源 - 跨流域调水工程水价计价模式的研究及应用·2,447,543篇论文数据，部分数据来源于NoteExpress
Water is a precious commodity that is often taken for granted in the West.
水很宝贵，但在西方人们往往意识不到这一点。
Clean water is a precious commodity in that part of the world.
在世界的那个地方，洁净的水是宝贵的东西。
The success of the IIIMP pilot in Egypt shows what can be done when an irrigation system is re-engineered to treat water as a scarce, precious commodity and to involve farmers in management.
IIIMP试验的成功表明了当我们重新设计一种灌溉系统以便把水作为一种稀缺的、珍贵的商品来对待，并调动农民参与管理时，可以取得什么样的成就。
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