块

The method includes steps: digital watermark technique is adopted to hide information of key data in not key data codes of compressed image; under protection of digital watermark, using protective backup for key data detects whether normal transmitted key data is correct or not so as to detect error code; carrying out cyclic mutual backup by using macro blocks in same positions in front and back macro block set; embedding coded motion vector in form of digital watermark to DCT transformation coefficient, and ensuring that video data are not influenced as best as one can; when error code occurs, if key data backup is correct, then the backup replaces former key data; otherwise, using mean value of key data in adjacent macro blocks within same frame to replace former key data approximately.

本发明中，采用数字水印技术在压缩图像的非关键数据编码中隐藏关键数据信息；通过数字水印保护下的关键数据保护备份来检测正常传输的关键数据是否正确，由此来检测传输误码；用前后宏块组中相同位置的宏块进行循环相互备份；对运动向量进行编码，然后以数字水印的形式嵌入到相对不重要的DCT变换系数中，同时保证视频数据尽量不受影响；在误码发生时，如果关键数据备份正确，则直接替代原关键数据，否则用同一帧内相邻宏块的关键数据的平均值近似替代原关键数据。

In the respect of data interpretation proceeding, the paper carried out the inversion calculation of experiment data with the resistivity CT method, gave some study on the image effect when the iron bodies were placed flatly close to water level under semi-space condition and were placed flatly, vertically or aslope to the water level under whole-space condition.

在资料解释处理方面，本文采用了电阻率CT法对实验数据进行反演计算，研究了半空间和全空间条件下铁块水平、垂直和倾斜放置时的成像效果，由效果图可以看出，通过电阻率CT法反演出的铁块的位置与水槽模拟实验中铁块的实际位置吻合的较好。

This invention has been possible since the problem of connecting the corner cube piece with the solid interior has been solved, so that the said corner piece can be self-contained and rotate around any semi - axis of the three-dimensional rectangular Cartesian coordinate system, be protected during rotation by the six caps of the solid, which is the central pieces of each face, to secure that the cube is not dismantled.

自从通过可靠的内部连接魔方角块的问题解决后，高阶魔方的出现成了可能。角块能够完全独立，并在三维直角坐标系的各个轴上旋转。而且在角块转动过程中，有6个可靠的cap提供保护。这种cap就是每个面的中心部分，它们可以保证魔方在转动的过程中不会散架。

My plant 520-1, 520-2 lately large brick machines model 14 pieces and 18, 20 pieces of 100 mm 200 mm Holland brickses at a time, having never needed to use to give plank, and any productseses can produce such as arbitrarily colorful road noodles azulejo, turf-grass brick and U type catchment dike brick and grow 1.2 meters, the breadth is 0.6 meters, the road of thick 0.4 meterses follow the stone and shoulder stoneses can all produce, class produces being 20000 pieces of is above and have the above new model all characteristicses and is a large cement product factory production high grade cement most ideal product nowadays of the head choose an equipments.

本厂最新大型520-1、520-2液压型砖机一次成型14块、18、20块100mm 200mm荷兰砖，无需使用托板、且任何产品都可以生产如任意彩色路面花砖、草坪砖、U型排水渠砖及长1.2米，宽0.6米，厚0.4米的路沿石、路肩石都可全部生产，班产20000块以上并且有以上新机型所有特点、是当今大型水泥制品厂生产高等级水泥制品最理想的首选设备。

My plant 520-1, 520-2 lately large brick machines model 14 pieces 18, 20 pieces of 100 mm × 200 mm Hollbrickses at a time, having never needed to use to give plank, any productseses can produce such as arbitrarily colorful road noodles azulejo, turf-grass brick U type catchment dike brick grow 1.2 meters, the breadth is 0.6 meters, the road of thick 0.4 meterses follow the stone shoulder stoneses can all produce, class produces being 20000 pieces of is above have the above new model allacteristicses is a large cement product factory production high grade cement most ideal product nowadays of the head choose an equipments.

本厂最新大型520-1、520-2液压型砖机一次成型14块、18、20块100mm×200mm荷兰砖，无需使用托板、且任何产品都可以生产如任意彩色路面花砖、草坪砖、U型排水渠砖及长1.2米，宽0.6米，厚0.4米的路沿石、路肩石都可全部生产，班产20000块以上并且有以上新机型所有特点、是当今大型水泥制品厂生产高等级水泥制品最理想的首选设备。

By experiments, it was showed that the fracture colour, white fracture width, shell shrinking of triangle sample pieces of ductile iron bear a relationship to pouring temperature, spheroidization effect and mechanical properties.

通过实验，发现球铁三角试块断口颜色、白口宽度以及三角试块外壳内馅情况与球铁球化效果、力学性能和浇注温度之间存在一定的关系，通过对球铁三角试块的分析，可以实现对球铁质量的控制。

Later, pieces of metal, bearing values according to the rarity of the metal and the size of the pieces, or coins were used.

后来， 人们开始使用金属块或硬币，金属块上标有根据该金属的稀有程度和该金属块的大小而定的它的价值。

It was covered with yellow handkerchiefs--20 of them, 30 of them, maybe hundreds, a tree that stood like a banner of welcome billow ing in the wind

20块，30块，也许有好几百块，这棵树站在那儿，就象一面欢迎的大旗，在风中飘扬。

It was covered with yellow handkerchiefs--20 of them, 30 of them, maybe hundreds, a tree that stood like a banner of welcome billowing in the wind

20块，30块，也许有好几百块，这棵树站在那儿，就象一面欢迎的大旗，在风中飘扬。

That the larger the chunk size the more secure the encryption -- ideally you would like to encrypt a file in a single data chunk to take full advantage of Rijndael's block chaining functionality

越大的块大小更安全的加密-理想您想在一个加密的数据块文件利用Rijndael算法的块充分利用链接功能

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。