Jisho

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(工学)
Wikipedia definition
1. Seal (mechanical)A mechanical seal is a device which helps join systems or mechanisms together by preventing leakage (e.g. , in a plumbing system), containing pressure, or excluding contamination. The effectiveness of a seal is dependent on adhesion in the case of sealants and compression in the case of gaskets. A seal may also be referred to as "packing. " Seal types: Induction sealing or cap sealing Adhesive, sealant Bodok seal, a specialized gas sealing washer for medical applications.
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