第二章首先确定了阀芯过盈密封的结构，并探讨了阀芯过盈量的选择，为日后的加工提供了依据。
Chapter 2 first determines the structure of the spool interference seal and discusses the choice of the magnitude of interference, in order to provide a basis for future processing.
第二章首先确定了阀芯过盈密封的结构，并探讨了阀芯过盈量的选择，为日后的加工提供了依据。
Chapter 2 first determines the structure of the spool interference seal and discusses the choice of the magnitude of interference, in order to provide a basis for future processing.
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