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expansion piton /ɛkspˈanʃən ˈpɪtən/ n

中文：膨胀岩钉

中文 · 膨胀岩钉Español · pitón de expansiónFrançais · piton à expansion
Meaning：Piton that is driven into a hole previously made in the rock.
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Found in these illustrated scenes（1）

Climbing gear 2

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