The idea of a reasonable material destri of the product should be in the light of its working condition and the cost to reach favourable application results has been put forward.
提出了应根据不同使用工况条件和成本进行合理的材质设计，方能达到理想的使用效果。
The idea of a reasonable material destri of the product should be in the light of its working condition and the cost to reach favourable application results has been put forward.
提出了应根据不同使用工况条件和成本进行合理的材质设计，方能达到理想的使用效果。
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