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In order to extend the effect and security of image encryption algorithm.An image encryption algorithm is presented based on three-dimension chaotic system and bit-computation.The permutation sequences and binary sequences are generated using three-dimension chaotic system.Firstly,the image is pretreated using chaotic system and permutation transformation,then the pixel's gray value's bit sequences are permuted using the permutation sequences generated before,at last,the pixel's gray value's bit sequences are computed by using XOR operating and the binary sequences.

为了改进图像加密算法的安全性和效率，提出了一种基于三维混沌系统和位运算的数字图像加密算法，利用三维混沌序列的坐标分量分别产生置换序列和二值序列，在对待加密图像进行预处理的基础上，先应用混沌置换序列对预处理的结果图像进行基于灰度值位序列的置换操作，然后再应用产生的二值序列对结果图像的灰度值位序列进行位异或加密运算。

Equivalent gray absorption coefficient in non-gray system is calculated by inverse analysis, which combines the zonal method and the method of minimization of a performance function stylizing the conjugated gradient.

本文将区域法(zonamethod，亦称段法)与求目标函数最小值的共轭梯度法结合，进行非灰系统当量灰吸收系数的反演。

The conception of gray general situation decision system is proposed, and its definition and a systematizing mathematical model are given, which provide a theoretical basis for development of gray decision theory.

运用一般系统理论，对灰色局势决策的共性进行了分析，提出了灰色一般局势决策系统的概念，给出了其定义和系统化的数学模型，为灰色决策理论的发展提供了理论基础。

Standard color is RAL 7038 Agate Gray, and RAL 7012 Gray .

机床标准颜色：玛瑙灰 RAL 7038，灰色 RAL 7012。

Painting: Agate Gray RAL 7038, Basalt gray RAL 7012 and Blue RAL 5017

颜色：机床标准颜色：玛瑙灰 RAL 7038，灰色 RAL 7012，蓝色 RAL5017。

The new Nike+ SportBand has presented a few more two-tone color schemes (gray-pink, gray-yellow and black-red) for color fussy type users to give them better choices.

新的Nike + SportBand提出了几个双色调的颜色方案（灰色，粉红，灰色，黄色和黑色，红色）彩色模糊型使用者，让他们更好的选择。

The water seems suspended above the rounded gray and blue-gray stones.

那水看来悬挂着悬挂在圆圆的蓝灰色石头上。

Eyes other than gray, blue-gray or light amber.

眼睛不是灰色、蓝灰色或琥珀色。

Eyes--In shades of light amber, gray or blue-gray, set well enough apart to indicate good disposition and intelligence.

眼睛：不同深度的浅琥珀色、灰色或兰灰色，彼此间的距离足够宽，显得布局良好，且聪明。

The general body hair short, black coat, gray, gray, black and white mixed color.

一般体毛较短，毛色呈黑色、灰色、灰白色、黑白混合色。

Nowadays, most of research are to build a transmutative Petri Nets through adding controlling place sets, controlling arc sets and controlling policy to the basic Petri Nets, while the Controlled Petri Nets could be used to argue many controlling theory problems conveniently and to induce many logically and physically supervisory and solve the Event Feedback Controlling Problems and State Feedback Controlling Problem in DEDS supervisory theory.

目前大多数的研究表现为在变形后的受控Petri网基础上，利用各种方法求得各种逻辑型、结构型控制器，解决DEDS监控理论中的事件反馈控制问题与状态反馈控制问题。

On one hand, there are discussions with the works council and union about extension of short time working up to the end of September.

一方面，有讨论，工程理事会和联盟关于延长工作时间短至9月底。