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1. The asbestos knee pad is a must-have for athletes who play sports on hard surfaces.
运动员在硬表面上运动时，石棉膝盖垫是必不可少的。
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2. The asbestos knee pad helps to protect the wearer's knees from injury during long periods of standing or walking.
石棉膝盖垫有助于保护穿着者在长时间站立或行走时膝盖免受伤害。
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3. During his recovery from an injury, he was advised to use an asbestos knee pad to reduce pain and swelling.
在他从伤病中恢复期间，他被建议使用石棉膝盖垫以减轻疼痛和肿胀。