middle-bulged varying ellipse shape
middle-bulged varying ellipse shape
中间凸起的不同的椭圆形状
以上为机器翻译结果，长、整句建议使用 人工翻译 。
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The working principle was analyzed for the middle-bulged varying ellipse shape of the two-freedom mechanism with the crank sliding-block mechanism and the cam mechanism.
分析了以曲柄滑块机构和凸轮机构为主动的二自由度机构成型活塞中凸变椭圆的工作原理。
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