该书很快就能读完(花了我大约八个小时，并且我通常读得非常慢)。
It's a very quick read (took me approximately eight hours, and I'm usually very slow).
判断标准为每分钟呼吸次数等于或少于八次就为偏慢呼吸。
这些感应器将引导神舟八号自动完成随后的路程，这个过程非常慢，也很精细，大约要用两个半小时。
These sensors will guide Shenzhou 8 the rest of the way automatically, in a slow and delicate approach that will take about two and a half hours.
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