Cost management principle

At this point, Air choice hedging, cost management is clearly in the active principle.

此时，空中的选择对冲，成本管理显然是在活动的原则。

According to the actual of cost management, the content and method of the traditional cost variance analysis are adjusted and perfected by use of statistical index analysis principle.

结合成本管理的实际情况，利用统计指数分析原理，对传统的成本差异分析内容与方法进行了分析、调整与完善。

Optimizing schemes by using the principle of cost project in the progress of commission designing management, which is generally used in the world, can unite the technique and economics tightly.

在工程设计管理过程中利用价值工程原理进行设计方案的优选，是国际上普遍采用的方法，可以将技术与经济圆满地统一起来。