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Hinge joint at elbow allows movement in one plane.
铰链关节—在手肘容许一平面的运动。
youdao
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A support hinge is arranged on the rotary elbow and is fixed on a reversing frame.
在所述旋转弯头上设有支承铰链，支撑铰链固定在回转架上。
youdao
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A support hinge is arranged on the rotary elbow and is fixed on a reversing frame.
在所述旋转弯头上设有支承铰链，支撑铰链固定在回转架上。
youdao