Stiffness: It is a measure of the bending strength of paper and board.

挺度：挺度是衡量纸和纸板耐弯曲的强度性能。

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To compare with the board which measure information and standard board information.

待检测板信息与标准板信息进行比较；

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To compare with the board which measure information and standard board information.

待检测板信息与标准板信息进行比较；

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