它与太阳的距离与地球相比，大约是1：2 . 5，因此，水星受到太阳照射的强度大约是地球的7倍。

It is about two and a half times nearer to the sun than our earth, therefore it receives nearly seven times as much light.

youdao

当一个物体上的光，如机器零件，照射到相机上时，敏感材料就可测量出光的强度，把光线转换为一组数字。

When light from an object such as a machine part strikes the camera, the sensitive materials measure the intensity of light and convert the light rays into a range of numbers.

youdao

最好的问题是如果我们，按照给定的强度照射60秒，那么总的光子数是多少？

So our last question we ask is what's the total number of photons emitted if we give this given intensity for 60 seconds?

youdao

So our last question we ask is what's the total number of photons emitted if we give this given intensity for 60 seconds?

最好的问题是如果我们,按照给定的强度照射60秒,那么总的光子数是多少？

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