After selecting the cost control method, enters the actual plan design phase.
选定了成本控制方法，就进入了实际的方案设计阶段。
Theory, method and technique of cost modeling faced on the whole phase of product design.
关于面向设计全过程的成本建模理论、方法和技术。
The preparation method has the advantages of reasonable design, simple process and low cost.
本发明制备方法设计合理，工艺简单，成本低。
The preparation method has the advantages of reasonable design, simple process and low cost.
本发明制备方法设计合理，工艺简单，成本低。
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