分组

In some circumstances, however, it may be appropriate to group similar or related items.

但在某些情况下，将类似或相关的项目分组，也许是恰当的。

By comparison, the ray grouping method produce agreed fields with the finite-element ray tracing method implemented by BELLHOP. Furthermore, it is free of singularities and the calculation speed can increase by more than 30 percent.

声线分组法与现有由BELLHOP程序实现的有限元方法相比计算结果具有很好的一致性，并且能够避免奇异点的产生，同时解算速度可以提高30%以上。

Power market ; Hydrothermal scheduling ; Group and Block bidding ; Energy ; Environment ; Economy ; Multi-objective optimization

电力市场；水火计划；分组分段竞标；能源；环保；经济；多目标优化

This paper presents a new multi-objective optimization algorithm and a multi-objective optimization group and block bidding model for power market, which comprehensively takes hydrothermal scheduling, energy, environment and economy into consideration.

该文提出了一种解决多目标优化问题的新方法和一个综合考虑水火协调及能源、环境和经济等多目标优化的分组分段电力市场竞标新模型。

We use symmetrical cryptography, bilinear mapping, hash function, identity-based encryption as basic knowledge tools.

在本文的研究工作中，用到了分组密码、双线性映射、单向散列函数、基于身份的加密等知识工具。

Secondly,a bisection method is put forward for one sort of periodic structures.

对于两类周期结构采用部分组集，大大减少了有限元建模所需时间。

Use as a daily cleanser to kill blackhead and breakout causing bacteria.

使用作为日常清洁杀死黑头和分组致病细菌。

Different from all other current file encryption systems which are also based on DES, our Enhanced File Encryption System is following X9.17 key generation standard to ensure the strength of the primary key, utilizing Cipher Block Chaining mechanism to hold the text structure, and introducing cache technique and Bit / Byte mapping algorithm to enhance the efficiency while reducing the complexity of the system.

与当前许多基于 DES 的文件加密系统不同，我们的增强型文件加密系统采用 X9.17密钥生成规范确保用户主密钥的强度，采用密文分组链接方式保护密文的结构信息，并且通过缓存技术和位/字节映射算法提高系统的执行效率、降低系统的复杂度。

The validity of the provable security of counter with cipher block chaining message authentication code mode and cipher-based message authentication code mode was studied and proved. The illustrations of different communications' encryption have been developed.

对分组密码算法CCM、CMAC加密模式进行描述，用可证安全性理论对它们进行相关研究和证明，并对各种证明情况在不同通信环境下的使用作出说明。

Block cipher ; differential character ; AES（advanced encryption standard

分组密码；差分特征；高级加密标准

I am accused of being overreligious," she said in her quiet, frank manner,"but that does not prevent me thinking the children very cruel who obstinately commit such suicide.""

客人们在卡罗利娜·埃凯家里，举止就文雅一些，因为卡罗利娜的母亲治家很严厉。

Designed by French fashion house Herm è s, this elegant uniform was manufactured in our home, Hong Kong, and was the first without a hat.

由著名品牌 Herm è s 设计，这件高贵的制服是香港本土制造，是我们第一套不配帽子的制服。