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它包括一条腰带和一条弹力绳(天然乳胶)，弹力绳内穿有一条尼龙保护绳，防止弹力绳断裂，起保护作用。弹力绳长6米，最大拉长为25米，是标准25米泳池使用。使用时，教练在岸边握住一端（有保护套），根据训练要求加阻力调整运动员的负荷。
It includes a waist belt and an elastic rope (natural latex), with a nylon protective rope threaded inside the elastic rope to prevent it from breaking and provide protection. The elastic rope is 6 meters long, with a maximum elongation of 25 meters, and is used in standard 25 meter swimming pools. When in use, the coach holds one end (with a protective cover) on the shore and adjusts the athlete's load by adding resistance according to training requirements.
更新时间：2025-12-29 14:13
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