形与神是一种辨证关系。

There is a dialectical relation between the form and the spirit.

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榫舌可呈S形以与凹槽形成互锁关系。

The tongue can be S-shaped to form an interlocking relationship with the groove.

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榫舌可呈S形以与凹槽形成互锁关系。

The tongue can be S-shaped to form an interlocking relationship with the groove.

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