反应烧结成本相对低一点，但制品中总有残余硅存在，使得制品的质量不高。
Cost of reaction sintering is relatively low, but there is always residual silicon in products, lowering the products quality.
提出了利用钢中有价残余元素降低炼钢成本的途径。
The paper also gives a way to reduce steelmaking costs by using the valuable residual elements.
因此，对板翅结构真空钎焊残余应力进行数值模拟，可采用只模拟冷却过程的方法，节约分析时间和成本。
Hence, the method just simulating the cooling process can be used to predict the residual stress of brazed plate-fin structure, which can reduce the calculating time and cost greatly.
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