By adopting appropriate foundry techniques, the accuracy of dimension and shape were ensured. The surface quality and internal density of runner meet the requirements of design.
通过采用合理的铸造工艺，确保了其叶片型线尺寸精度、转轮表面质量及铸件内部的致密度满足了设计要求。
During machine design, tolerance of unit ring in assembly dimension chain is usually determined by using either equal tolerance or equal accuracy method.
在机械设计中，装配尺寸链的组成环公差，一般是采用等公差法或等精度法来确定。
The method is easy to use in dimension and tolerance design and has high accuracy.
在尺寸及公差设计中，该方法简单、易行，而且可以获得高的计算精度。
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