The dependent claim shall, by additional technical features, further define the claim which it refers to.

从属权利要求应当用附加的技术特征，对引用的权利要求作进一步限定。

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The dependent claim shall, by additional technical features, further define the claim which it refers to.

从属权利要求应当用附加的技术特征，对引用的权利要求作进一步限定。

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