结论：旋转开始阶段，运动员膝关节易发生左膝内侧副韧带损伤和膝内侧半月板损伤。
CONCLUSION: at the beginning phase of rotation, the common injuries of knee joint of the athletes are left knee medial accessory ligament and meniscus.
介绍了对旋转式永磁副励磁发电机的静止化改造。
Improvement of action less for rotaty secondary excited system generator are introduced.
结论肘关节后外侧旋转不稳定除桡侧副韧带的损伤外，可能还有外侧伸肌及伸肌腱膜的损伤。
Conclusions Besides the injury of the radial collateral ligament, the injuries of the external musculus extensor and the aponeurosis can cause the posterolateral rotatory instability of the elbow.
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