Vacua a possessio 单纯占有
Similarly, only a small fraction of the stable vacua are hospitable to life.
同样地，只有稳定真空的一小部份才适合生命。
The radiation spectrum for relativistic electron moving along curved spiral curve in plasmas is calculated, and also the formula of total energy emitted by a relativistic electron in vacua is derived.
计算了等离子体介质中，沿弯曲螺旋线运动的相对论电子的辐射谱，进一步导出了真空中的能量辐射公式。
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