Bacterial concentrations are higher during exacerbation than during stable disease; however, these studies are cross sectional and devoid of strain typing.
虽然疾病加重期的气道细菌浓度高于稳定期，但是，以前的研究均为横断面研究，且缺乏菌株分型。
Fans say it lets them type at blazing fast speeds, with less strain on their hands and wrists than typing on a conventional keyboard.
粉丝们说他们用它能以超级快的速度打字，并且能减轻打字时手的疲劳。
Excessive amounts of typing is a well-known cause of carpal tunnel syndrome (CTS), which is a painful wrist strain that can go up your arm.
打字太多会引起腕管综合症，症状是手腕紧张疼痛，甚至还会影响到整个手臂。
The right keyboard and mouse can prevent repetitive strain injuries developed from typing and clicking all day.
合适的键盘和鼠标能预防每天敲敲点点所造成的重复性劳损。
The right keyboard and mouse can prevent repetitive strain injuries developed from typing and clicking all day.
合适的键盘和鼠标能预防每天敲敲点点所造成的重复性劳损。
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