英语听力：自然百科 金星和水星旅行指南 Venus and Mercury-16

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Here, the official temperature is eight hundred seventy degrees Fahrenheit¹.

 

Day or night, equator or pole, the searing heat never varies more than a few degrees, and 

 

that’s why we have so few snapshots from the Venusian surface.

 

So why it’s so hard to bring scientific instruments to the surface of Venus, what about an ordinary camera? Just twenty lie there, when I just send a camera and take pictures. I got my NASA ISSUE spacesuit here, my special Venus suit, and let’s take this camera, and send it to Venus and see what happens.

 

Primarily, you don't want to melt, it's such a hot environment that all the electronics, all the power, all the communications have to be very rugged².

 

Anything mechanical, anything electronic, it's just an enormous challenge to have the functions of service.

 

And it's not just the heat that you have to bear, all that sky above is really heavy, pressing in at around ninety times the pressure on earth.

 

When I was a graduate student, we used to get in conversations about what would get you first, the temperature or the pressure? (It) would be pretty simultaneous, I think.

 

To descend³ to the surface of Venus is the same as diving over half a mile under water.

 

So enormous pressure, enormous crushing pressure, how do you make things that would stand? How must， too， things / turn and move under those of huge outside pressures. Well, that's what the armor technology is all about. NASA suits are using composite fibre, strong aluminum⁴ alloys⁵, and stainless⁶ and titanium and all these things. That looks like something out of transformers, so out of a comic book, that's same kind of suit that you need on the surface of Venus.

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