And this paper collects the initial data through the questionnaire.

通过调查问卷收集原始数据.

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Being due to initial data errors, the result accuracy from the popular adjustment will decrease.

因起算数据误差的存在, 导致了用普通的平差方法求得的结果精度降低.

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But in fact, it's difficult to know the intact structure initial data. "

然而,在实际 检测过程 中, 原始数据很难得到.

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Digital watermark technology is the integrality of data through embedding secret information - the watermark initial data.

数字水印技术设计的关键是水印信息嵌入的隐蔽性和抵抗攻击鲁棒性.

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