查询词典 uncertain

Design of robust sliding hyperplane s for parametric uncertain systems with time-delay.

时滞参数不确定系统的鲁棒滑模设计。

Uncertain singular systems are transformed into the form of restricted equivalence by a nonsingular linear transformation. By the method of Lyapunov function, a new terminal sliding mode control strategy based on the form of restricted equivalence is proposed for the first time, and the hypersurface of a special terminal sliding mode is given. A terminal sliding mode controller is designed correspondingly such that the motion of sliding mode can be guaranteed and the systems state variables can converge to the equilibrium point in a finite time.

通过非奇异线性变换把不确定奇异系统变换成受限等价形式，利用Lyapunov函数方法，首次提出了一种新的Terminal滑模控制策略，给出了特殊的Terminal滑模超曲面，设计了相应的滑模控制器，实现了滑模运动，保证了系统状态变量在有限时间内收敛到平衡点。

The proposed approach is verified by two cantilever beam experiments under ideal boundary conditions and uncertain end conditions, and the approach presented here is suitable for crack identification in engineering even if small frequency measuring errors exist.

对于理想边界条件下的裂纹参数识别，在测量频率存在小误差情况下，该方法仍能给出比较满意的结果，对于非完全固支边界条件下的裂纹参数识别，利用本文方法能得到比Narkis的方法更精确的裂纹位置识别结果。

But this kind of entity may insurmountably have some uncertainties when it is expressed abstractly to the spatial object of GIS, and these uncertainties are the uncertain factors including error, inaccuracy, illegibility and so on.

但是这类实体在抽象描述为GIS的空间目标时难以避免地会带有一定程度的不确定性，这种不确定性指的是在进行抽象描述时随之产生的误差、不精确性、模糊性和含混性等不确定性因素。

The IMF's attitude to this is uncertain.

对此，IMF的表态还不清楚。

In addition, as immunologist Nina Bhardwaj of New York University points out, the real-life relevance of a threefold increase in infection rates is uncertain.

另外，纽约大学的免疫学家NB指出，在实际情况里，可能达不到3倍这么高速度的感染率。

Nowadays, China is a moneymaking society, full of energy as well as impatience and uncertain.

当今的中国是一个努力创造财富的社会，充满了力量，也充满了浮躁。

Location of the inland frontier regions have greater uncertainty and imperfectibility at politics and economy than other regions,therefore the border " shielding effect " makes the actual advantage of location of the inland frontier regions uncertain,especially the relative advantage may change in the future,cause the transaction costs of the inland frontier regions to be redounded .

内陆边境地区在政治和经济上存在较大的不确定性以及信息上的不对称性和不完善性，由此产生的边界"屏蔽效应"使得内陆边境地区的区位实际优势不确定、特别是相对优势在未来可能发生变化，导致内陆边境地区的交易成本被抬高。

Before you decide to get married not to act impetuously, their feelings are also faster to go very fast in his uncertain you are, when his wife, but one thing is sure, that is, when they get married, they on the very single-minded, and full to the family.

在你们决定结婚之前不要感情用事，他们的感情是来得快也去得很快在他不确定你是他的老婆的时候，但有一件事情是可以肯定，就是当他们结婚，他们就非常的专一，而且全力赴在家庭上。

Ordinarily, therefore, courts do not inquire into the adequacy of consideration This is particularly so when one or both of the values exchanged are uncertain or difficult to measure But it is also applied even when it is clear that the transaction is a mixture of bargain and gift See Comment c to 71 Gross inadequacy of consideration may be relevant to issues of capacity, fraud and the like, but the requirement of consideration is not a safeguard against imprudent and improvident contracts except in cases where it appears that there is no bargain in fact

通常，法院因此而并不探究约因的充分性。在一方双方交换的价值不确定或者难以计算时尤为如此。但这即使在交易很明显是协商和赠与的混合的情况下也是适用的。参见第71条的评论c。约因的重大不充分可能与能力、诈欺和相似性问题相关，但是，除非在事实上没有协商的案例中，约因的要件并非针对轻率的、无远见的契约的安全保障措施。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。