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Since there isn't an opposing model in the defined project, the first required scan is the scan of the upper model, which will be the reference for the positioning of all the other scans. <br />This step is divided into two sub-steps.
由于在定义的项目中没有对面的模型，所以首先需要的扫描是扫描上颚模型，这将成为所有其他扫描定位的参考。 这一步分为两个子步骤。
