结论：不同的悬浮剂不同的悬浮时间对白细胞和上皮细胞的悬浮保存有显著的影响。
Conclusion: urine cell suspending conservation is distinguished affected by different kinds of suspending reagent and suspending time.
时间魔法般地悬浮在表内。
尽管大部分气溶胶在空气中悬浮的时间很短，基本上在4天到一周之间，但是它们能扩散到很大的范围。
Although most aerosols remain suspended in the air for just short periods-typically between four days and a week-they can travel vast distances.
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