Maintaining the elbow over or outside the hand will prevent this rotation and friction, hence preventing or relieving pain.

要使肘关节保持在手掌的外上方，这将会避免肩关节的转动和磨擦，从而预防或减轻疼痛。

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Forearm and hand entry - Pinky first, directly above and just outside the shoulder with arm fully extended, with body rotation allowing entry hand to reach deep into the catch.

前臂和手入水——小指领先，直接地由上方且仅沿肩的外侧让手臂完全伸直，伴随身体转动至允许入水手到达抓水的深度。

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This article mainly talks about how to replace the to-and from swinging movement of hand with a six-pole machine applied by disc rotation.

在研究驱动圆盘式人力收割机时，设想将人手的往复摆动转换为圆盘转动所采用的六杆机构。

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Yankees right-hander Hiroki Kuroda is expected to take his next turn in the rotation Monday at Cleveland after bruising the middle finger on his throwing hand when hit by a Shane Victorino line drive Wednesday.

NPR: Jeter May Not Return To Yankees Until Next Month

Yankees RHP Hiroki Kuroda is expected to take his next turn in the rotation Monday at Cleveland after bruising the middle finger on his pitching hand when it was hit by Shane Victorino's line drive Wednesday night.

WSJ: Banged-up Yankees take a hit in 8-3 loss to Tigers