While he was gone during the day, the hours were a blur of Sesame Street, pre-school, and playing in the neighborhood with my brothers.

在这一天他离开的时间里，我就是看芝麻街，上学前班，以及和兄弟们一起同邻居们玩。

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The model can be used to design or evaluate X-ray imaging system and can also be a pre-knowledge of blur function in X-ray image restoration.

该模型为X射线成像系统空间分辨率和密度分辨率的初步设计和评定提供了理论依据，可作为X射线图像恢复算法中模糊函数的先验信息。

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