查询词典 f.v.

Let G = V(G,E be a simple graph with |V| vertices and |E| edges. Let |V|= p,|E|= q, if there exists f: V →{1,2,...,p} be an injective mapping, and define an inducedfunction f":E→{1,2,...,q} by setting f"=|f-f| for all∈E. If f maps E onto {1,2,...,q}, then f is said to be a Skolem-graceful labeling of G, the graph G is said to be a Skolem-graceful graph.

对一个给定的简单图G=V(G，E，|V|和|E|分别是图G的顶点数和边数，令|V|=p，|E|=q，如果存在一个一一映射f：V→{1，2，…，p}，使得对所有边∈E，由f′=|f-f|所导出的映射函数f′：E→{1，2，…，q}是一一对应关系，则称f是图G的一个Skolem优美标号，图G被称为Skolem优美图。

A function f: V→{-1,1} defined on the vertices of a graph G is a signed total dominating function if the sum of its function values over any open neighborhood is at least one.

函数f：V→{-1，1}称为图G的符号全控制函数，如果对每一个开邻域集上的点的函数值的和都大于等于1。

This structural peculiarity is the essential prerequisite for the production of spirant sounds such as f, v, s, sh, th, and others.

这对发出麼擦因是不可或缺的，例如：f， v， s， sh， th，及其他。

Produces the red flash under the computer F-V signal function which supple gently changes, in the start process electric current is smaller than the normal work electric current, the voltage imitates 20V to start gradually to elevate until 220V, completely has avoided to the photosource electricity impact; The digital electric circuit board installs the radiator, the light bulb service life may enhance above three times; Canada supposes the lightning protector, further enhances the lamp equipment the service life.

在电脑F-V讯号作用下产生柔和缓变的红色闪光，启动过程中的电流小于正常工作电流，电压从120V开始逐渐升高直到220V，完全避免了对光源的电冲击；数码电路板加装散热器，灯泡的使用寿命可以提高三倍以上；加设避雷装置，进一步提高灯器的使用寿命。

This p a per introduces a method of the electronic be a m flow controlling of the electron be a m welding m a chine by using V/F a nd F/V converter.

介绍把V/F及F/V转换器作为电子束焊机束流控制方式的研究，实现了焊接束流的快速控制，提高了电子束流的稳定性及可靠性。

Gravity ball check valves are converted to foot valves by replacing the union nut and end connector on the receiving end – seat end – of the body with an F.V.

重力球形止回阀可以变为底阀，只需在接受端口-阀体的阀座端口，用一个F.V。

Results A straight line through f-V points was obtained and its intersection point with the V-axis was just the volume of titrant at the equal amount point-Ve.

结果：获得f-V点直线图，直线与V轴交点即为等量点时滴定剂体积Ve。

3 When design pressure of F.V.

如果设计压力指定为 F.V。

Weights shown for foot valves are actually those for PVC F.V.

所显示的底阀重量实际上是适用于PVC材质的F.V。

So, the weight for a CPVC F.V.

所以CPVC材质的F.V。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。