查询词典 uncertain

The integration uncertain border value is estimated by fuzzy inference and the soft switch control is accomplished by tanh function replacing sgn.

根据模糊推理估计集成不确定边界，利用双曲正切函数代替符号函数实现软切换连续控制。

Though its precise origins remain uncertain, the species Theobroma cacao is generally believed to have originally evolved in South America, after which it was variously distributed and domesticated north through the tropics into Mesoamerica, perhaps on the move as early as the first millennium B.C.

虽然它的确实来源仍不清楚，伹一般认为都是来自南美洲国家，然后一直向北扩展，穿过热带到中美洲地区分发。这个发展也许早在公元前1000年已经开始著了。

Stability, robustness and oscillation of differenct uncertain time-delay systems are analyzed. Synthetical time-delay control schemes are proposed, including robust stabilizing control, variable structure control, robust dissipative control and so on. Industrial time-delay system model are established based on the theorematic results and industrial requirements. Pratical control algorithms and APC-software are developed and applied to practical process successfully.

在国家自然科学基金资助下，本项目对各类不确定时滞系统的稳定性分析、振动性质分析、鲁棒镇定控制器设计等问题进行了全面的理论分析，并结合流程工业生产过程的特点和企业需求，建立工业过程时滞系统模型，开发实用型的控制算法和先进控制软件，在一些典型的工业生产过程进行了成功的应用，取得了显著的经济效益和社会效益。

The over survival was 92% in group A, and 81.5% in group B when patients follow up more thon 24 weeks [ Log Rank analysis,χ^2=3.85 ,P=0.047]; side effects were observed such as arthralgia, sweating, hot flash, and 2 patients developed heart failure with uncertain related drug before recovery.

Kaplan-Meier生存曲线表明，尽管未获客观反应的患者疾病进展后曾采用化疗、放疗或其他治疗，但与达到客观反应的患者相比生存时间差异仍有统计学意义，随访大于24周时两组的总生存率分别A组92%，B组81.5%［Log Rank检验，χ^2=3.85，P=0.047］。

So far,the clear relationship between tortuosity and the microstructure of porous media is uncertain.

在考虑了多孔介质微观结构的前提下，分析了外界因素和多孔介质结构对曲折因子的影响。

At length he would reach the corn, and selecting a suitable ear, frisk about in the same uncertain trigonometrical way to the topmost stick of my wood-pile, before my window, where he looked me in the face, and there sit for hours, supplying himself with a new ear from time to time, nibbling at first voraciously and throwing the half-naked cobs about; till at length he grew more dainty still and played with his food, tasting only the inside of the kernel, and the ear, which was held balanced over the stick by one paw, slipped from his careless grasp and fell to the ground, when he would look over at it with a ludicrous expression of uncertainty, as if suspecting that it had life, with a mind not made up whether to get it again, or a new one,or be off; now thinking of corn, then listening to hear what was in the wind.

最后，它终于到了玉米旁，拣定一个玉米穗，还是用那不规则三角形的路线跳来跳去，跳到了我窗前堆起的那一堆木料的最高峰上，在那里它从正面看着我，而且一坐就是几个小时，时不时地找来新的玉米穗，起先它贪食着，把半裸的穗轴抛掉；后来它变得更加精灵了，拿了它的食物来玩耍，只吃一粒粒的玉米，而它用一只前掌擎起的玉米穗忽然不小心掉到地上了，它便做出一副不肯定的滑稽的表情来，低头看着玉米穗，好像在怀疑那玉米穗是否是活的，决不定要去拣起来呢，还是该另外去拿一个过来，或者干脆走开；它一忽儿想看玉米穗，一忽儿又听听风里有什么声音。

ABSTRACTS In this thesis the diagnostic expert system theory and methodology are studied, with the emphasis on the fuzzy knowledge representation, uncertain reasoning and diagnostic knowledge acquisition. The applications of neural networks in the fault diagnosis for rotating machinery are also studied. A fuzzy diagnostic expert system for turbocompressor called ETHYLENE is implemented.

本文以大型旋转机械为研究对象，着重研究了旋转机械故障诊断专家系统的理论和方法，包括模糊知识表达、不确定性推理与诊断知识获取等问题；本文还研究了神经网络模型及其在旋转机械故障诊断中的应用；并研制了一个透平压缩机组模糊诊断专家系统。

The statement that the plague at Thebes depicted in Oedipus Tyrannus alludes to the plague at Athens is highly speculative, since the date of this play is uncertain.

伊底帕斯王》开场描绘底比斯城爆发大瘟疫，很容易使人联想到西元前四三O年的雅典瘟疫。

It is uncertain whether carrier or unapparent infections exist.

目前尚不能确定是否承运人或不明显的感染存在。

The unascertained analysis method is introduced into the dynamic characteristic analysis of uncertain structures.

未确知结构的动力特性分析将未确知结构分析方法引入不确定性结构的动力分析中来。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失