深入地探讨了射影平面上虚元素的共轭性，得到了有关虚元素共轭性的几个结论。

The conjugacy of virtual elements on projective plane was deeply discussed in this paper, and a few conclusions on the conjugacy of virtual elements were arrived at.

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右键点击这个虚框，打开弹出式选单（ 图7），用它来添加或者维护已有的数据池构件元素。

Right-clicking on the grid opens the pop-up menu ( Figure 7) that you use to add or maintain the datapool structural elements already described here.

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看过了TimeSeries函数和强制类型转换以及其他元素之后，虚表看上去是一种自然的选择。

After seeing the TimeSeries functions and casts and other elements, a virtual table looks like an easy choice.

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