他早期一些试验也能获得图像，但很快就消失了。
Some of his early experiments made images, but they faded very fast.
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在夏天的雨后，天空中常有彩虹出现，但很快就消失了。
Often in summer, there is a rainbow in the sky after the rain, but soon it will die out .
但这些问题很快就消失了。
Yet those problems soon disappeared.
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