sealing washer
An island of Svalbard.
plural of nontutor
A rubber or neoprene washer, sometimes metal-backed, typically placed on a fastener to prevent water from migrating into and through the fastener hole.
plural of Rappist
出航前に、彼女はデッキの締め具の周りにある古いゴム製またはネオプレン製ワッシャー（場合によっては金属裏打ち）を交換して、ボルト穴から水が船体に浸入するのを防いだ。
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