upper cloud的意思|示意

This shock wave is heating up dust, which WISE sees as the red cloud in the upper left of the image.

这个冲击波正在给灰尘升温，就是图像的左上角看到红色的云。

Although such a cloud would pose virtually no threat while in the upper atmosphere, the fallout at the ground of radioactive particles from it should be a concern for any monitoring authority.

虽然这种云在高层大气中几乎不构成任何威胁，但是它在地面散发出的放射粒子的余波应该是任何监管机构所关注的。

On its arrival in 1995, its atmospheric probe descended by parachute into Jupiter's upper cloud layers, detecting large thunderstorms.

1995年到达木星时，放出探测器，下降至木星大气中，结果发现了大雷暴。