The unilateral system permits changing the tolerance while still retaining the same allowance or type of fit.

单向体系允许在依然保留相同允差或配合类型的情况下改变公差。

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The unilateral system permits changing the tolerance while still retaining the same allowance or type of fit.

单向体系允许在依然保留相同允差或配合类型的情况下改变公差。

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