8406| 21
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求一個(gè)繩索張緊裝置 |
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點(diǎn)評(píng)
攀巖繩索見(jiàn)過(guò)沒(méi)?人家爬到半山中,繩索就是靠棘輪固定住的,不是靠強(qiáng)壯的右手的
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