The center of the umbra is much darker than its edges, " it says.
阴影的中心要比边缘暗得多,”杂志上说。
Deep Umbra: the aspects of the Umbra far beyond Earth, in deep space.
深影界:影界远离物质界的一面,位于深层空间。
When this happens, the umbra cannot reach Earth and an antumbra shadow is created over the planet's surface.
当这种情况发生的时候,本影无法到达地球,非本影阴影就会出现在地球表面。
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