在此类研究中，研究人员需要在很长一段时间内对上音乐课和未上音乐课的不同小组的儿童进行追踪——即使任务并不是完全随机的。
In such studies, researchers would need to follow groups of children with and without music lessons over a long period of time—even if the assignments are not completely random.
孩子们根据年龄段被随机分成两两一组。
一台机器在特定的时间段内使用这些临时的地址，直到重新设置为另一个随机地址。
A machine USES these temporary addresses for a specified amount of time, before being reset to another random address.
这种假设解释了在一段时间内表型性状的随机变异，但没有解释表型性状为什么会进化。
This assumption explains the random variation of phenotypic traits over time, but it doesn't explain why phenotypic traits evolve.
而对于您自身而言，您是在提供一种方法，将随机的数据实例与某一天可能会缓存的特定用户代理(即浏览器)信息段相关联。
But as for yourself, you're providing a way to associate your arbitrary data instances with specific pieces of information user agents (i.e., browsers) may one day cache.
用一段一段的红色的线段，把随机选择的钮扣，一对一对地连在一起。
Break off pieces of the red thread and tie a randomly chosen pair of buttons together by the thread.
对多级多段随机控制系统也进行了讨论。
The case of stochastic multi-step systems is also discussed.
假随机数：一段数字序列中的数，看上去似乎是随机的，但实际上也是由确定的算法来生成的。
Pertaining to a sequence of numbers that appears to be random, but is generated by a deterministic program.
此次袭击在日期和目标上的随机性，表明相关袭击计划可能被提前了，而此次袭击的规模表明该计划已经酝酿了一段时间。
The random nature of the date and targeting suggests a plot that may have been brought forward, while the scale of the attack suggests it must have been in the pipeline for some time.
随机代码段，组合在一起，形成意想不到的含义。
Random segments of code, that have grouped together to form unexpected protocols.
背景——来自随机对照试验的汇萃数据表明，因急性ST段抬高型心肌梗塞行直接PC I术后的患者，使用阿昔单抗可以提高生存率。
Background: Pooled data from randomized controlled trials suggest that the use of abciximab may be associated with a survival advantage in patients undergoing primary PCI for acute STEMI.
方法：我们对320名因患有急性ST段抬高型心肌梗塞而接受SES或BMS治疗的病人进行了随机对照研究。
Methods: We conducted a randomized trial of 320 patients with acute ST-segment elevation myocardial infarction assigned to receive SES or BMS.
方法采取现场无记名自主填写调查表，对应用二阶段抽样法随机抽取的1800名社区居民进行调查。
Methods The questionnaire survey forms were filled out on-the spot by 1800 residents who were at random selected.
方法采用正交试验设计和完全随机实验设计筛选罗汉果脱毒苗茎段增殖培养基。
Methods the selection of the fitting shoot segment multiplying culture media was studied by orthogonal test design and completely random experimental design.
经对性能指标性质的分析给出了一种模糊神经网络的学习算法——二阶段变半径随机搜索法。
Based on the analysis of the performance index a new algorithm, two stage random search algorithm with variable radius, is put forward.
它直观上可视作半动力系统随机中断(或出现问题)的时刻，亦可视作逐段决定马尔可夫过程的首次随机跳跃时刻。
In a sense, it can be seen as the time when semi-dynamic system is killed, or as the time the first random jump of piecewise deterministic Markov process.
目标运动的基本假设是在一段观测时间中保持常速度，并有随机速度扰动。
A basic assumption concerning source motion is to consider it to be of constant velocity with random perturbations over the observation intervals.
PVC热分解的第二阶段是产物具有一定随机性的无规降解。
Thermal reactions of PVC in the second phase are irregular and form products randomly.
各个时间段随机拍的一些和花有关的照片。
Random flower photos I took here and there, as time goes on.
随机的代码段？
对于一个典型的地震记录，如果地震平稳段持续时间较短，采用非平稳随机过程描述其地震动特性较为合理。
For a typical earthquake record, if the duration of its stationary portion is rather short, such a record should be described in terms of a non-stationary random process.
如果你想开始一段友谊，就主动地说“你好”，试着交往，然后随机应变！
If your mission is to start a friendship, say "Hello"; get up in the air, and see what happens!
方法采用一种相对简便可靠的“随机不休息法”对不同年龄段雄性SD大白鼠进行Y -型迷宫测试。
Methods Using "random restless" testing method (a kind of relatively simple and reliable method of Y type maze) to test the learning and memory's ability of male SD rats in different age stages.
最近一个纳入45名帕金森病患者采用基因治疗的研究已经结束并准备将结果公布，该研究是采用随机分组、在第二阶段采用盲法的多中心临床研究。
A 45-patient randomized blinded phase II multicenter clinical trial using the gene therapy to treat Parkinson's has recently ended and results are being readied for publication.
随机应变，发表了一段精彩的演讲。
提出了具有随机偏差的最优多段卡尔曼估值器。
An optimal multistage Kalman estimators with random bias is proposed in this paper.
提出了具有随机偏差的最优多段卡尔曼估值器。
An optimal multistage Kalman estimators with random bias is proposed in this paper.
应用推荐