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The total number of dampers may be selected as odd or even.
多重调谐质量阻尼器可由任意奇数个或偶数个调谐质量阻尼器组成。
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The dampers allow the chimney to be closed when the fireplace is not in use.
这个节气阀可以在不用壁炉的时候把烟囱关上。
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The dampers allow the chimney to be closed when the fireplace is not in use.
这个节气阀可以在不用壁炉的时候把烟囱关上。
youdao