次数

Presents some equations describing tracer gas concentration decay as a base for the experiment, analyses various factors influencing air changes in the room, effectiveness of the technique and its proper implementation, and concludes that the room layout and open-and-shut state of windows and doors in the space measured have a major effect on air changes.

提要 用示踪气体浓度衰减法对某会议室的自然通风作了实测研究，分析了影响换气次数的各种因素、示踪气体浓度衰减法的有效性及其正确应用。揭示出不同的房间布置及不同的门窗开启情况对换气次数有很大影响，而示踪气体浓度衰减法是对此进行实验研究的有效手段。

During the journey I thought of you at least as much as I did of the new country that I was seeing.

在路途中，我想到你的次数至少与我见到的新的地方的次数一样多。

Another little interesting point, the amours of whores and chummies, to put it in common parlance, reminded him Irish soldiers had as often fought for England as against her, more so, in fact.

另外一个有趣的小问题（打个通俗的比方，犹如妓女和扫烟囱小伙子相好）就是爱尔兰兵替英国打仗的次数和与英国敌对的次数一样多，老实说，前者还更多一些。

Because of high temperature, few cauterized times and short course, electrocautery of TCM has a remarkable effect on degrees Ⅱ and Ⅲ of tonsil hypertrophy; however, various textures, degrees of hyperemia, ages and co-operations can cause different cauterized times.

中医电烙法由于热度高，烙治次数少，缩短了疗程，对扁桃体Ⅱ度和Ⅲ度肥大治疗效果明显；但因扁桃体质地软硬、充血与否和年龄以及合作等情况不同，烙治次数有差异。

Then, two groups of male rats copulated with female rats philtred in advance.

结果：与对照组相比，SD大鼠在摘除精囊腺后，爬高潜伏期、插入潜伏期延长，2h内爬高总次数、2h内插入总次数及有射精活动鼠数减少，两组间的差异性具有极显著性；两组的命中率比较，P.05，其差异具有显著性。

Continuous observations using the video recording system showed that in the three biotypes,the earliest copulation events occurred 2-6 h after emergence and 56-73%of females copulated at least once by 12 h after emergence.

3B型烟粉虱与ZHJ2型烟粉虱的生殖隔离程度与同型雌雄虫之间的交配次数和频率相比，B型烟粉虱和ZHJ2型烟粉虱之间的交配次数显著减少，交配频率显著下降。

If the switch is turned off a predetermined number of times or more while the heater is in operation, the controller determines that flow of the heated air is abnormal, and deactivates the heater.

如果开关断开预定的次数，或多于预定的次数，而加热器仍在工作，则控制器确定热空气流为异常，并制动加热器。

This means that the amount of inter-server communications is proportional to the amount of updates/deletes of the application.

这意味着服务器之间的通信次数是和应用的更新/删除次数成比例的。

METHODS Mice hot-plate, writhing test and mice menalgia model of acute stress blood stasis rat was used to compare therapeutic action of the three preparations RESULTS Both chuanxiong formula granule and decoction pieces standard broth of liquored Chuanxiong formula granule and decoction pieces stand ard broth could prolong pain threshold, extend incubation period caused by acetic acid andoxytocin, reduce writhing frequency, and improve some indexes of hemoreology in acute stress blood stasis rat.

选择热板法、扭体法、痛经模型、急性应激血淤血液流变性等方法，比较川芎配方颗粒及饮片、酒川芎配方颗粒及饮片的主要药理作用。结果川芎配方颗粒与川芎饮片标准汤剂、酒川芎配方颗粒与酒川芎饮片标准汤剂均能延长小鼠热板痛闭值，均能延长醋酸所致扭体反应的小鼠扭体潜伏期并减少扭体次数，均能延长小鼠痛经模型中催产素所致扭体反应的潜伏期并减少扭体次数，均具有改善急性应激血淤大鼠血液流变的作用。

Research shows that relative pessimists are more accurate at gauging success and failure rates at a simple laboratory task than optimists, who undercounted failures and overcounted successes, says Edward Chang, associate professor of psychology at the University of Michigan.

密歇根大学心理学副教授Edward Chang说，研究表明，在统计一项简单实验的成功率时，与乐观主义者相比，相对悲观的人能获得更准确的数据，而乐观主义者会少计失败次数而多计成功次数。

He and Nina moved to California and lived at 2005 Ivar Street, Apt.

他和Nina搬到加州，并在2005年伊瓦尔街，公寓生活。

Droperidol （ potently inhibits transfected HERGchannels and this is the probable mechanism for QT prolongation.

氟哌利多有效地抑制了转染的 HERG 钾通道，可能是 QT 间期延长的机制。