结果：1）舌体的前后位置在两种畸形之间未见显著差异。

Results: 1) No statistically significant difference was found in anteroposterior position of tongue between two groups.

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机器运行时由纠偏装置调整包装薄膜前后位置，实现纵向纠偏，使包装薄膜精确定位。

The longitudinal(position) of the film was regulated by the registration system while machine running, so as to maintain the packing film in position accurately.

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我们以字符前后位置拆分桶。这样我们得到三个桶：字符本身、字符前面数据和字符后面数据。

We split the bucket before and after the character. Now we have three buckets: the character itself, and all data before and after it.

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