由此总结出的一些规律可以指导工程实践。
Some useful regulations are concluded from the data gotten from the project and can be used to instruct later construction.
由此总结出真-视二级参数间相互关系的近似计算公式。
From the conversion formulas, the approximativeinterrelation formulas between true and apparent parameters are deduced.
综述了发泡鞋底材料的研究现状，并由此总结出发泡鞋底材料的发展趋势。
In this paper, the status quo of foamed sole materials is introduced and the development of the materials is given.
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