不确定性

Further, considered the considerable uncertainty of current sample variance, a reliability estimation method based on t-distribution theory and empirical logarithmic standard deviation is proposed.

进一步考虑到工程实际中当次可靠性试验的样本方差具有较大不确定性的因素，提出了基于对数标准差经验值的t分布可靠性评估方法。

To the problem that large-scale labeled samples isn't easy to acquire in the course of SVM training, the active learning strategy is used in the SVM training and an incremental training algorithm of active SVM based on the uncertainty based sampling of distance ratio is proposed in the paper. The experimental results show that the active SVM learning strategy can considerably reduce the labeled samples and costs compared to the passive learning method, and at the same time it can ensure the accurate classification performance is kept as the passive SVM and also expedite the SVM training.

针对 SVM训练学习过程中难以获得大量带有类标注样本的问题，本文将主动学习策略应用于SVM增量训练中，提出了一种基于距离比值不确定性抽样的主动SVM增量训练算法，实验结果表明在保证不影响分类精度的情况下，应用主动学习策略的SVM选择的标记样本数量大大低于随机选择的标记样本数量，大大降低了标记的工作量或代价，而且训练速度同样有所提高。

The large uncertainty is due to the sensitive dependence of the analysis on the size and density distribution of atoms in the molasses, but the result was satisfyingly consistent with the predicted Doppler cooling limit.

大的不确定性是由于对大小和密度在糖蜜原子分布分析敏感的依赖性，但结果是令人满意的预测与多普勒冷却极限是一致的。相关英语？英语？初一

There is great difference between the actual systems and the mathematic models because of the uncertainties. So the engineering problem can not be solved satisfyingly if it is designed only based on the nominal system.

不确定性的存在使实际对象与所用数学模型之间有很大差别，如果仅仅根据标称系统来设计控制器，会使大量工程控制问题无法获得满意结果，甚至严重影响系统性能。

The scads of Irish construction workers often make you forget the setting is Manhattan, which is a perfect metaphor for Johnny's complete disorientation and ambiguity.

片中众多的爱尔兰建筑工人经常令人忘记影片的拍摄地点是在曼哈顿。这也恰好暗示了Johnny的迷惑和不确定性。

Compared to the existing non fragile H ∞ control results,the approach in this paper needs not any tuning of scalar or matrix and is less conservative.

文献 [3]说明了H∞，H2 ，L2 和μ等控制器的设计方法，当控制器存在参数不确定性或摄动时，其维持闭环系统稳定的能力并不

Accompanied with the development of knowledge economy ,many MNCs make uses of the characteristics of intangible assets such as scarceness and uncertainty ,and frequently engage in inter-company trade. These behaviors have badly infracted the interest of local governments and at the same time have brought much puzzle to the local tax administration departments.

近年来，随着知识经济的发展，许多跨国公司利用无形资产独占性、不确定性的特点，进行频繁的内部交易，严重侵害了东道国的利益，给税务机关的税收管制造成严重困扰。

Under the current schedular tax system, the income generated at different times shall not offset each other, that is to say, all income shall be taxed, and no tax is imposed if no income is generated.

由于国家目前对股票转让所得暂不征收个人所得税，国家税务总局在研究股票转让所得的申报时考虑到：个人在一个纳税年度内可能频繁发生多次股票交易，要求其逐次记载股票转让所得，无疑将增大个人自行纳税申报难度；同时考虑到在一个纳税年度内股票交易盈亏具有不确定性，所以，在明确股票转让所得申报口径时规定，一个纳税年度内股票转让所得与亏损盈亏相抵后的结果为正数的，应统计在12万元之内；考虑到一些纳税人的其他应税所得项目已经超过12万元，本身已属于高收入群体，对于一些高收入者的股票转让盈亏相抵结果为负数的，为避免炒股的"负盈余"对已超过12万元的其他各项所得的冲抵，加强税源监控，我们规定"负盈余"按"零"申报。

To seasonal products such as fashion apparel, because demand uncertainty is great and the sell period is short. After the sell season, the scrap value of the unsold product is little.

对季节性产品，比如服装来说，由于需求的不确定性大，且销售基本都集中在很短的时间，销售期过后，余货的残值很小。

But space and time constraints of the seafarer results in the speciality of their time for study.

但由于船员工作时间的不确定性，导致学习时间的特殊性。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐