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adjusting tube /ɐkˈaʊnt aɪdˈɛntɪfɪkˈeɪʃən/ n

中文：调节管

中文 · 调节管Español · tubo de ajusteFrançais · tube d’ajustement
Meaning：Part of the upright into which the vertical tube attached to the horizontal bar slides in order to adjust the height.
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Parallel bars

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