By calculating, the article analyzes in detail the spread situation of electric magnetic fields in round space when the point electric charge moves in a low speed, and makes the diagram.
通过计算，详尽分析了点电荷低速运动时，周围空间电磁场分布情况，并给出图示。
User1 checks out a file, makes changes (for example, User1 will arrange the shapes in Diagram and delete two UML operations from a class), and keeps the file checked out.
User 1检出了一个文件，进行一些修改，(例如，User1将安排图中的形状，并从一个类中删除两个UML操作)，并且将此文件保持为检出状态。
But, as things get complicated, they start suffering from the hairball effect: all the lines start running together, and one can't create a diagram that makes sense to anyone anymore.
然而，一旦事情变得复杂了，它们都会受到毛团效应的影响：所有的线条开始交错在一起，你也无法再创建一个对别人来说有意义的图表了。
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