The hardness of cigarette was affected slightly by the change of tobacco rod density in certain range.

烟支密度在一定范围内变化对烟支硬度的影响不大。

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The hardness of cigarette was affected slightly by the change of tobacco rod density in certain range.

烟支密度在一定范围内变化对烟支硬度的影响不大。

youdao