实质

Second, in the viewpoint of crypto analysis, the practical requirement for the cryptographic function is to construct the function that can resist all the known crypto analysis and attacks. In advanced, the main cryptographic properties are compared, and the relation among these cryptographic properties is analyzed, including the trade-off ones. Get the conclusion that the construction of cryptographic Boolean function is to find out the proper Boolean function in the whole vector space under the restriction of several cryptographic properties required for the security system.

然后本文从密码分析的角度，讨论了密码函数的实际需求，即构造能够抵抗已有密码分析与攻击的布尔函数；分析了布尔函数的主要的密码学性质，并比较了这些性质之间的相互关系，包括制约的关系；得出了构造布尔函数的实质的结论，即在向量空间中构造全体布尔函数，以所需的若干密码学性质作为限制条件，用有限域上的多项式、Walsh谱、Hadamard矩阵等数学工具找出适当的布尔函数用于加密体制的设计。

They have different opinions about the issuewhether politics needs moral or not, But in the essence their opinionsboth embody the private politicians, which is botfly different frommodern public administration.

圣王与暴君是两种最典型的政治人范式，尽管对政治是否需要道德有着不同的理解，但是实质都是私人政治的体现，以君主利益作为政治活动的终极目标，这与现代公共政治是完全相异的。

During the development of tools, it is evident that data flow diagram"tool is very necessary for rapidly carding the complex outer and inner data flow of function area, and for solving the problem of researching and analyzing the complex information flow toward the whole enterprise in deed, and for offering important basis and reference for building the information system"s logic model of entir enterprise.The paper especially designed and realized the visual tool of data flow based on Information Resource Planning system.In face visual tool is a strategic data-analysis tool and an important organic part of Information Resource Planning tools.It emphasizes wholly conformity with planning repository and brachylogy and practicality.

结合工具开发，认识到要迅速理清数据在企业各个职能领域之间和内部的复杂流动，要真正解决面向企业整体的复杂信息流调研和分析的问题，必须有数据流工具的支撑，为科学建立整个企业信息系统的逻辑层模型提供重要依据和参考，论文着重进行了基于信息资源规划体系的数据流可视工具的设计与实现，实质上是高层的数据分析工具和信息资源规划工具的有机组成，并且工具与规划元库充分整合，统一标准和规范，强调简明和实用。

The essence of control is to utilize adhesion coefficient, namely "in the process of brake wheel - ground" get the maximum play.

控制的实质是充分利用附着系数，即在制动过程中使"车轮-地面"附着力得到最大的发挥。

To be successful, a person in business works hard and tries to get down to brass tacks .

一个人在业务上努力工作，触及实质的人才能取得成功。

All right, let's get down to brass tacks, okay?

好，我们说实质问题，好吗？

This is not something that can be skated over–let's get down to brass tacks.

这件事可不能一带而过—我们来讨论实质问题吧。

She, too, is getting down to brass tacks.

她也是正在搞清这个实质问题。

He is getting down to brass tacks.

他正在搞清这个实质问题。

Let's stop quarrelling and get down to brass tacks.

好了，让我们停止争吵，讨论实质问题吧。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。