Close to the centre of the sun, a group of sunspots is visible.
接近太阳表面中心之处，一个黑子群清晰可见。
In the sudden darkness, the magnificent corona of the Sun became visible around the Moon.
在这种突然的黑暗中，太阳的绚丽光环在月亮周围变得清晰可见。
The temperature is in the mid 30s but no sun is visible.
气温有三十几度，但是看不见太阳。
Because less then 5% of the sun spectrum is ultraviolet radiation and 43% is visible light.
而太阳光谱中紫外光区占不到5%，可见光区则占43%。
In this condition the sun itself is not visible;
在这种期间太阳自身是看不到的；
In this condition the sun itself is not visible;
在这种期间太阳自身是看不到的；
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