查询词典 valid operation

Element and attribute names that are not valid XML names are escaped by replacing the offending characters by the sequence _xHHHH_, where HHHH is the character's Unicode codepoint in hexadecimal notation.

非法的XML元素和属性名字都会被逃逸掉，方法是把非法的字符替换成 _xHHHH_ 序列，这里的 HHHH 是该字符的 Unicode codepoint 之十六进制表现形式。

High speed railway ; Computer ; Train diagram ; Valid time chain ; Backtracking and searching

高速铁路；计算机；列车运行图；有效时间链；回溯搜索

First of all,we have given some of the basic concepts of differential equations, described the constant coefficient linear ordinary differential equation solution, for a class of second-order variable coefficient linear ordinary differential equation initial value problem, an approximate solution, the method is first unknown function of a definition for N sub-interval, and then in between each district within a constant coefficient ordinary differential equations similar to the replacement, the solution has been the problem as similar to the original analytical solution, and then gives a detailed second-order change order coefficient of linear homogeneous ordinary differential equation solution examples, the examples of the approximate method proposed in this paper is valid.

首先给出了微分方程的一些基本概念，讲述了常系数线性常微分方程的解法，针对一类二阶变系数线性常微分方程初值问题，提出了一个近似解法，本方法是先对未知函数的一个定义区间作N等分，然后在每一个小区间内用一个常系数常微分方程近似替换，所得到的解作为原问题的近似解析解，随后详细给出了一个求二阶变系数齐次线性常微分方程的解的实例，该实例说明本文提出的近似方法是有效的。

It is concluded that valid grit protrusion height, mean grit edge angle and grit protrusion homomorphy can be regarded as evaluation parameters of grit protrusion behavior of diamond grinding wheel.

有效磨粒出刃高度、平均磨粒出刃角和磨粒出刃同形度可以作为金刚石砂轮修锐后的磨粒微观出刃形貌的评价参数。

Due to difficulty of evaluation of micro grit protrusion topography after dressing of diamond grinding wheel, valid grit protrusion height, mean grit edge angle and grit protrusion homomorphy were proposed as characteristic parameters to evaluate iso-height behavior of grit protrusion, cutting behavior of grit edges and crystal integrity of diamond grit protrusion.

针对金刚石砂轮修锐后磨粒微观出刃形貌的很难评价的问题，建立有效磨粒出刃高度、平均磨粒出刃角和磨粒出刃同形度的特征参数模式，分别评价砂轮工作表面的磨粒出刃等高性、磨粒切削性能和磨粒出刃结晶完整性。

Edge detection ; Vertical gray level projection ; Horizontal gray level projection ; Valid peak ; Hough transform

边缘检测；垂直灰度投影；水平灰度投影；有效波峰；霍夫变换

The result show that the above techniques based on HOS are valid.

并验证了采用高阶统计量方法的正确性和所提取特征的有效性。

Hope nobody was turned away from linux due to it being possibly obsolete (I still think that's not the case, although some of the criticisms are valid) and written by a hothead

希望不要有人因为linux可能过时(我仍然不那么认为，尽管一些批评是合理的)是一个头脑冲动的家伙写的而放弃它

Some of these hyperlinks might not be valid or may direct you to irrelevant websites.

这些超连结有些人可能是无效的或可指示你不相关的网站。

So, it's common to use multiple macro:defines in one page and for the page to be a valid Hypertext Markup Language page, like so

因此，很常见的是在一个页面中使用多个 macro：defines ，为了让这个页面成为一个有效的HTML页面，可如下

We have something to do in the new stage.

在这段崭新的时期中，我们有一些要做的。

The difference between tourism decision-making under uncertainty and risky tourism decision-making is indistinctive.

其中不确定性旅游决策和风险旅游决策的界线比较模糊，两者的区分是相对的。