查询词典 operators

The paper gives a detailed introduction to the classification and mothed of image edge detection from the traditional point of view,that is,the robert operator based on the maximum gradient detection,the sobel operator,the prewitt operator,the canny orerator,the laplancan operator based on the detection of second derivative of the zero-crossing point and then log operator.The paper makes a summary and analysis to the principles and applications,advantages and disadvantages of each algorithms and operators. Especially the canny operator.

本文首先介绍了图像边缘检测在国内外的发展，图像边缘检测的重要性及意义，阐述了图像边缘检测的原理，从传统的角度详细介绍了的图像边缘检测的分类及方法，即基于检测梯度最大值的robert算子，sobel算子，prewitt算子，canny算子，基于检测二阶导数的零交叉点的laplacan算子及log算子，对各种算法和算子的原理及用法及优缺点做了总结和分析尤其是canny算子。

There are mathematical, comparison , logical, and reference operators.

有数学、比较、逻辑和引用运算符等。

When two expressions are combined by using comparison or logical operators, the resulting data type is Boolean and the value is one of the following: TRUE, FALSE, or UNKNOWN.

生成的表达式的数据类型、排序规则、精度和值由进行组合的两个表达式决定，并按每次两个表达式的顺序递延，直到得出最后结果。

Here we improved the traditional genetic operators by importing the rule of logical operation.

摘 要：采用了基于静止坐标系的速度观测器，并根据电流型逆变器的特点提出一种只需电压传感器即可实现转速估算的方案。

So far we have introduced a couple of EBNF operators that deal with looping.

到目前为止我们已经介绍了一些针对循环的EBNF操作符。

By introducing two time operators, the traditional LOTOS is extended and time|based LOTOSs syntax and formal semantics are described.

前 言与传统分布式系统相比，分布式多媒体系统有3个重要特点：连续交互性、提供严格的服务质量机制和实时同步性。

Door, drapery, gate, louver, and window operators and systems

房门，帷幔，大门，气窗和窗户的控制器及控制装置

Ngamchai and Lovell proposed a solution model based on the use of several genetic operators designed for this specific problem.

ngamchai和Lovell提出了一个解决方案模型的基础上，利用几种遗传操作设计，为这个具体的问题。

Note: In the following examples, the query operators may be shown as upper or lower case.

注意：在下面的例子中，有的查询操作符是大写的，有的是小写的。

This capability will enable operators at Luminant to be cross-trained on all control system platforms, for more efficient workforce deployment.

模拟器的性能使在Luminant 的操作者通过所有控制系统平台得到培训，得到更有效的劳动力配置。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。