在为《内科学文献》做的最新调查中，科学家对153位男士和女士做了为期2周的追踪，并记录下他们的睡眠质量和持续时间。
In a recent study for the Archives of Internal Medicine, scientists followed 153 men and women for two weeks, keeping track of their quality and duration of sleep.
一位驻L'Aquila的BBC记者称格林尼治时间2200左右发生一起强烈余震，持续时间大约2秒钟，大地像果冻一样摇晃。
A BBC correspondent in L'Aquila said there was a strong after-shock around 2200GMT, which lasted for around two seconds and made the ground feel like jelly.
其中一位议员茱迪•楚丝向议会讲述了她的乡村视察见闻：“干旱持续时间越来越长，降雨越来越少……我相信全球气候变暖的确存在。”
One, Judith Troeth, told the chamber of her rural experience: “Droughts are longer. Rainfall has dropped…I believe there is global warming.”
位界力场支援：持续时间减少为27秒。
这一位置的持续时间是1971 - 1984。
控制仪每次输出一位的驱动电压，一个驱动电压持续时间，称为脉冲宽度。
The control device creates driving voltage output every time. One driving voltage has duration, called a pulse width.
婚礼期间，这两位新人心里一定会十五只吊桶打水——七上八下（注1），因为这次航程将有15次过山车式的俯冲，持续时间30秒。这种飞行方式，用航空专业术语说，叫做抛物线弧形俯冲。
The newlyweds are sure to have butterflies in their stomachs because the trip includes 15 rollercoaster-type dives, known as parabolic arcs, which last up to 30 seconds.
图2B串，每个脉冲的持续时间或脉宽表示M个数据位的组，交替的高和低脉冲表示连续的组。
Fig. 2b, each of whose time durations or pulse widths represents a group of m data bits, with the alternating high and low pulses representing successive groups.
正如一位评论人员所指出，该研究并未包含活性药物对照组，且持续时间相对较短。
As an editorialist noted, the study did not include an active comparator and was relatively short in duration.
经分析82位个案求助经验的结果显示，问题发生和持续时间的长短，与个人应用社会纲络资源类别的多寡之间并无一定的关系。
Results indicated that there was not a consistent relationship between the duration of problems and the amount and categories of utilizing social networks.
经分析82位个案求助经验的结果显示，问题发生和持续时间的长短，与个人应用社会纲络资源类别的多寡之间并无一定的关系。
Results indicated that there was not a consistent relationship between the duration of problems and the amount and categories of utilizing social networks.
应用推荐