The validity of half-scan mode was verified by the results of computer simulation and experiments.
计算机模拟和实验结果证明了该技术的正确性。
This paper proposed a modified ordered subsets expectation maximization(OSEM) reconstruction based on the direct helical half-scan data.
提出了基于直接螺旋半扫描数据的有序子集期望最大化（OSEM）迭代重建。
Sort through a pile of paper that's been building up for the past few weeks. Recycle or scan – try to get it down to less than half.
把上几周的文件分类整理好。循环再利用一些——最好收拾到不到一半的数量。
In the example in Figure 2, this should reduce the scan-to-free rate by more than a half, which will reduce overhead.
对于图2中的示例，这应该会把扫描可释放页面的速度提高一倍多，这会降低开销。
If these techniques fail, researchers could perform an MRI scan on the container, but this option is expensive and would involve transporting the half-ton coffin to a hospital.
如果这些技术都失败了，研究人员可以设法对棺材使用核磁共振扫描，但此项选择需要昂贵的经费，并会涉及到怎样把半吨重的棺木运送到医院。
With this method, the team used the device to scan and create a 3-D image of the "hills and valleys" on the front face of a U. S. penny -- with micron-level resolution -- from half ameter away.
借助此方法，设备在0.5米远的地方就能够清晰地扫描一美分硬币正面“错落有致的花纹（林肯头像）”，并创建其三维图像，而且分辨率达到微米级。
With this method, the team used the device to scan and create a 3-D image of the "hills and valleys" on the front face of a U. S. penny -- with micron-level resolution -- from half ameter away.
借助此方法，设备在0.5米远的地方就能够清晰地扫描一美分硬币正面“错落有致的花纹（林肯头像）”，并创建其三维图像，而且分辨率达到微米级。
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