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塑件宜取回转体对称外形，不宜过高。
Plastic Parts Swinging back to symmetrical shape, should not be too high.
youdao
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旋转体枢设于导引结构上，并沿导引结构回转。
Rotator is set on the structure and revolved along the guiding structure.
youdao
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旋转体枢设于导引结构上，并沿导引结构回转。
Rotator is set on the structure and revolved along the guiding structure.
youdao