If all goes well the screen should blank out and flash green showing that the HEN is loaded and all is well.

如果一切顺利的话，应该屏幕空白和闪绿灯显示，表明HEN加载和一切都正常。

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The traffic signals along Factoria Boulevard in Bellevue, Washington, generally don't flash the same length of green twice in a row, especially at rush hour.

华盛顿贝尔维尤的法克托利亚大道上的交通信号通常不会连续两次闪烁相同时长的绿灯，尤其是在交通高峰期。

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This "green flash," caused by light refracting in the atmosphere, is rarely seen.

这种“绿色闪光”，是由大气中的光折射所引起的，很难见到。

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Hotel keycards flash green for entry and red for stop.

WSJ: New Outlook for Colorblindness

The reason the eye sees the flash as green, according to Dr Young, is that someone waiting to watch it will usually have been staring at the setting sun for several minutes.

ECONOMIST: In a flash

Subtract that undetected red from the yellow of the flash, and green is left.

ECONOMIST: In a flash