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A directed graph, or digraph G consists of a finite nonempty set of vertices V, and a finite set of edges E, where an edge is an ordered pair of vertices in V.

有向图，或图克组成的有限非空子集的顶点V和有限的一套边英，那里的优势是下令对顶点在五顶点也称为节点。

By using a switch in proper time, the front and lagging edges of pulse can be cut off, so that the seperated Walsh subcarriers are obtained, they are the orthogonal functions ...

而误差的主要来源是射频通道非线性引起的交叉干扰，但在目前射频通道的一般水平上交叉干扰最大值小于5％，这已满足一般的工程要求。因此SDM作为一个与FDM和TDM相平行的多路复用系统是完全能用于遥测中的。

On the whole, the orthopteran communitiesdiversity in edge zone are higher than those in the interior of adjacent communities at the similar edges.

分析各边缘地带蝗虫群落多样性发现，所有边缘类型的边缘处直翅目昆虫多样性明显高于其相邻的生态系统。

At their edges things were pretty much out of focus.

在他们的角度上有很多东西都是模糊的。

But there was still that memory moving round the edges of his consciousness, something strongly felt but not reducible to definite shape, like an object seen out of the corner of one's eye.

然而那记忆又在他意识的边缘转个不停，他分明觉出它存在，却找不准确切的形状，好比眼角瞥见的东西一样朦胧。

Sewn together with overhand stitches (close vertical stitches that pass over and draw the two edges together).

用锁边缝线缝在一起（将横过的垂直缝线合拢并将两个边缝在一起）。

Do not let cartons overhang the edges of pallets.

不要让纸箱过剩的边缘，货盘。

The major difference between these two types of lava rocks is that A'a has more sharp edges and pahoehoe is smoother and more fluid.

这两种熔岩的主要差别乃在於A'a的边缘比较尖锐，而pahoehoe就比较平滑和更加液化，都是来自夏威夷。

The crossing number of a graph is the minimum number of pairwise intersections of edges in a drawing of in the plane.

图的交叉数是指把图画在平面上边与边产生的交叉数目的最小值。

Historic preservation therefore no longer aimed in the city history, but in city marketing. Moreover, preserving the spatial forms and making a palimpsest of the space allowed the process of revitalization as a double edges sword to carve the city's history and culture face.

古迹保存或历史诠释不再以辨认城市历史为目的，而文化与经济的接枝更使得历史保存与空间内涵的刮除重写并存，成为刻划城市新文史面貌的双面利刃。

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。