Mountain City, underground.
"You're running out of time."
Lin Yu looked at the slightly blurred image projected in front of him and said to Lin Xi beside him:
"Actually, I'm curious, how exactly do you see these images?"
"You don't have drones like the Huaxia Army, so how do you see the images?"
"Satellite."
Lin Xi replied:
"We have satellites."
"You can think of it as a kind of... drone that flies very high."
Lin Yu nodded thoughtfully, then said:
"But that doesn't make sense."
"If you fly so high, you'd definitely be above the cloud layer."
"But how could you... penetrate the clouds and fog to see what's on the ground?"
A slight smile appeared on Lin Xi's face.
"You're clever, you've thought of the key point."
"But this actually isn't a big deal."
"We use an optimized SAR synthetic aperture radar technology to first generate greyscale images and then restore them into high-resolution images resembling optical imaging using intelligent algorithms."
