Project cost management is a complex system engineering. It is a dynamic process.
项目成本管理是一个复杂的系统工程，是一个动态管理过程。
The model of computer aid cost decision overlays main process of the system.
本系统的计算机辅助成本决策模型覆盖成本管理决策的主要过程。
Ths system can resist conspiracy attack, simplify the executing process and reduce the traffic cost.
新的方案不仅避免了同谋攻击，而且简化了原方案的执行步骤，降低了通信量。
The system is simple in structure and low in process cost.
系统结构简单、工艺成本低。
The system is simple in structure and low in process cost.
系统结构简单、工艺成本低。
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