Too many columns in a table can make the scan time for queries much longer than if there are just a few columns.
一个表中有太多列比仅有一些列时进行查询所需的扫描时间要长。
Conclusion: in 3d-flash sequences, water excitation technique as an alternative to fat suppression can shorten scan time significantly, without decreasing image quality.
结论：3d -FLASH序列合用水激发技术代替脂肪抑制可显著缩短扫描时间，而不降低图像质量。
Conclusion: in 3d-flash sequences, water excitation technique as an alternative to fat suppression can shorten scan time significantly, without decreasing image quality.
结论：3d -FLASH序列合用水激发技术代替脂肪抑制可显著缩短扫描时间，而不降低图像质量。
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