The utility model relates to an improved straight handle type artificial hip joint fixed by the screw bolt of a femur big rotor.

本实用新型涉及一种改进的、经股骨大转子螺栓固定的直柄式人工髋关节。

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This paper presents the tail rotor failure patterns, handle methods and flight test methods of helicopter.

介绍了直升机尾桨故障类型及其处理方法和试飞方法。

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