不确定

But the attribution reduction is a NP problem,and it needs to be realized by knowledge of elicitation method.

引言粗糙集理论是Pawlak等学者在1982年提出的处理不确定，不精确和不完全数据的一种新的数学工具，主要用于知识的简化及知识依赖性的分析[1]。

I'm not sure I understand the thrust of your question, and I certainly don't want to appear evasive or unresponsive.

我不确定我了解你问题的重心，我不想让你以为我在逃避或不回答你的问题。

Whenever you are unsure of whether your child has made a fatal error, do not correct him or her.

当你是你的孩子是否取得了一个致命错误，不不确定不正确的他或她。

The Letters differ in various ways: as produced by different conformations or in different regions of the mouth; as aspirated, not aspirated, or sometimes one and sometimes the other; as long, short, or of variable quantity; and further as having an acute, grave, or intermediate accent.

字母有不同的分类方式：口腔不同的构型或不同位置发声；送气或不送气，有时送气或有时不送气；长音、短音或不确定音长；轻重音、次重音、重音等。

That great advantage the theory has over linear or nonlinear systems is that system state trajectory moving in the sliding or switching hypersurface have invariability, insensitivity or adaptivity in the presence of internal parameters or system model uncertainties and external perturbances.

这个理论对线性或非线性系统的最大优势是当面临内部参数或系统模型不确定及外部扰动时系统状态轨迹在滑动面或开关超平面上的运动有不变性、不灵敏性或自适应性。

N\nThe first moves for the King of Spain are obvious, but beyond Iberia, there is far less certainty.

n\n西班牙国王一开始的行动目的明确，但是在伊比利亚半岛以外的状况（不知道应不应该加这个状况）却是非常的不确定。

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。

Rough Set theory is an effective approach of imprecision, vagueness and incompleteness in classification analysis and knowledge discovery.

粗糙集理论在对不精确、不确定和不完全的数据进行分类分析和知识获取中具有突出的优势。

Rough set theory is an effective approach to imprecision, vagueness, and incompleteness in classification analysis and knowledge discovery.

粗糙集理论在对不精确、不确定和不完全的数据进行分类分析和知识获取中具有突出的优势。

Rough Set is a new mathematics theory that can deal with incertitude and incompletion data.

粗糙集理论是一种新兴的处理不精确、不确定与不完全数据的数学理论。

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