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With the advancement of science and technology, some new theories and new ways emerged gradually, some of them merged with specific theoretical tools, this specific theoretical tools include mathematical morphology, fuzzy techniques, neural networks, wavelet and so on. Secondly, in this paper, it described and analyzed the segmentation method based on the edge in the domain of image segmentation in detail. It did experiments on several edge detection operators using MATLAB, it summarized the advantage and the shortcoming of traditional edge detection operators, and the operating environment. On the basis of the experimental analysis, it implemented an edge location more precise, more efficient operating speed edge extraction method——Template Vector. In this method, it optimized differential approximate calculation of first differential operators the paper mentioned. After experimented on this edge extraction method, contracted with the traditional methods, the edge outline is extracted more accurately and more exquisitely, furthermore, it retained the object outline furthest, and achieved more satisfied edge extraction result.

其次，对图像分割领域中常用的基于边缘的分割方法进行了详细的研究与分析，对各种边缘检测算子进行了MATLAB环境下的实验，分析总结了各种传统边缘检测算子的优缺点和适应环境，并针对传统边缘检测算子在处理显微图像时的缺陷，在实验分析的基础上研究并实现了一种边缘定位更加精确、运算速度更加快捷的边缘提取方法——模板向量算法，在该算法中，对文章提到的一阶微分算子中微分的近似计算作进一步优化，经过对该边缘提取方法进行实验，其结果与传统方法相比，轮廓提取更为精确细腻，且最大程度的保留了图像中物体(目标个体或者明显噪声点)的轮廓，得到了比较理想的边缘提取效果。

The effect of different uniformity of bagasse —liquor on cooking quality was experimented.

模拟试验了蔗渣不同料液混合均匀性对蒸煮的影响。

This is expected because the experimented beam is too long.

这是预期的，因为实验束太长。

When she received the broken bisque doll, she experimented for two years before she was able to repair it.

当她收到了坏掉的素烧陶磁娃娃时，她整整实验了两年，才知道如何修复它。

Use of a "cloning" procedure known as "artifical twinning" or "blastomere splitting" to create several genetically identical embryos from one, so long as the resulting embryos are experimented on and discarded instead of being transferred to the womb.

使用"克隆"程序称为"人工配对"或"卵裂球分裂"制造基因相同的胚胎数由一、只要是试行并导致胚胎被丢弃而不移送的子宫。

He studied under Bouguereau and Gustave Moreau and experimented with Pointillism, which he found rigidly confining.

最初，他跟随布格罗和莫罗学习，试验点画法，但后来发现很有局限性。

In 1774 Joseph Priestley (1733-1804) experimented with the following chemical reactions: He heated liquid mercury in air, and it turned into a red powder, known as the red calx of mercury.

在1774年，普里斯特利（1733-1804）用以下化学反应做过实验：他将液汞在空气中加热，然后它变成了一种红色粉末，即通常所说的红色水银烧渣。

Four sorts of sex pheromones that were mixed at different ratios with three kinds of main sex pheromone components of seabuckthorn carpenter moth:-7-tetradecenyl acetate (Z7-14:Ac),-3-tetradecenyl acetate (E3-14:Ac) and-7-tetradecenyl acetate (E7-14:Ac), were experimented in the field. The results showed that four kinds of pheromones all had strong, attractive effects on male moths.

为比较沙棘木蠹蛾性信息素不同配方的诱集效果，该文利用人工合成的性信息素组分顺-7-十四碳烯乙酸酯(Z7-14：Ac)、反-3-十四碳烯乙酸酯(E3-14：Ac)和反-7-十四碳烯乙酸酯(E7-14：Ac)按照不同比例配置的4种配方进行了野外诱集试验。

Throughout the 1970s, the Army experimented with various materials to replace brass in cartridge casings.

1970年代里面，陆军试验了各种不同的材料以替换黄铜弹壳。

Some owners also have experimented with vegetarian dog biscuits and dry cereals such as Cheerio's.

一些人也试用素食的狗饼干和干燥的谷类如好盐菌等。

More direct, directer ; most direct, directest

径直的，笔直的

Do you know how to use a chain saw?

你知道如何使用链锯吗？