Jiang Zi and Liang Jing pushed the car door hard and came down, standing in the calf-deep lake, and it was drizzling outside, only then did they realize that the walking car had run all the way into the half-foot lake.

Jiang Zi took two steps forward and looked around, the boundless dense fog and the lake, and the misty rain could not see the end at a glance.

"Can this car still drive?" Liang Jing pushed the walking car, the latter looked like a plane forced to land and gnaw mud, the body was seriously tilted, half of the chassis was immersed in liquid alkanes, and the bolts that were driven into the ground were pulled out violently, it was hard to imagine how much power it endured when Howling passed, everyone said that Howling was a deadly banshee cruising on the Titan, and there was no grass everywhere she went.

Without the walking car, the two of them would not have survived.

"Big white? Can you hear us, Dabai? Great? Liang Jing probed into the cockpit and shouted at the center console, but there was no response, and the instruments and indicators of the walking car flashed.

Liang Jing pulled back and shook his head: "Hell, it seems that the contact has been cut off, and we can't contact Dabai." ”

Jiang Zi raised his hand to build a pergola, tried to look, and then slowly frowned, he couldn't see the land, no matter which direction it was, it was the same as the water and the sky.

"Where are we?"

"Half a foot on the lake." Liang Jing panted and climbed into the cockpit, flipped the switch on the center console, the large screen on the console lit up again, and the system was restarting.

"I know we're on Half Foot Lake, but Half Foot Lake is the size of forty-six square kilometers." Jiang Zi also sat in the cockpit and turned on the various subsystems of the walking car in turn, "The communication is not interrupted, but the power supply is cut off, and the power consumption speed of the walking car is too fast after the deformation, and the backup batteries are about to run out...... Great? Can the Great White hear us? ”

There was a faint noise of electricity flowing through the headphones, and then Dabai's voice sounded: "Roger, Mr. Stationmaster, Dr. Liang Jing, are you okay?" Have you finished your last words? ”

"Shut up!" Both of them shouted viciously at the same time.

"I'm glad you are both safe and sound, but the weather conditions are likely to continue to deteriorate in the future, and you should return to Cassini as soon as possible."

"I'm working on it." Jiang Zi tried to restart the engine of the walking car, "Also, we don't know where we are, the navigation and positioning system on the walking car is hanging. ”

Liang Jing slapped the positioning system, which jumped around frantically, and finally told him that he was at the gate of the Forbidden City.

Under normal circumstances, the walking car uses inertial navigation to locate itself, it can accurately record every step of the road it has walked, and this accuracy can be accurate to the millimeter level at a distance of hundreds of kilometers, that is to say, let the walking car set off from Hefei to participate in Shanghai's driver's license test in the case of unmanned driving, and can get full marks in reversing into the warehouse, but the sudden roar interferes with the positioning of the walking car, plus it enters the escape mode all the way, and now even the walking car itself does not know where it is.

There are no markers on the half-foot lake, and no matter which direction they go, they can only see the smooth surface of the lake, not to mention the dense fog here, they can't see far at all.

"Dabai, can you help us locate it?" Jiang Zi asked.

"I'm working on it." Dabai replied, "Mr. webmaster, I think your biggest problem at the moment is probably not only positioning. ”

"Yes, you're right, it's not just positioning!" Jiang Zi slapped the steering wheel, and the engine of the walking car made a weak fart sound, and then stopped again, the power in the battery of the walking car was completely exhausted, and even the backup battery was used in the escape mode, which was completely unable to walk.

"There's no power." Liang Jing glanced at the remaining power of the battery, "No matter how much you step on the accelerator, it can't be useful." ”

"You say Tesla is so awesome, why don't you install a few charging piles here?" Jiang Zi gave up, he leaned back in his seat, "No rut, abandon the car." ”

The walking car is no longer saved, Liang Jing and Jiang Zi can only walk back, Tiefutu can hold on for more than ten hours, as long as they successfully rush back to Cassini Station in the next ten hours, then Liang Jing and Jiang Zi will not be martyrs.

"Big white? Dabai, have you completed your positioning? ”

"Mr. Stationmaster, Dr. Liang Jing, I can only narrow down the accuracy to a range of 500 meters at most, but I am afraid that the accuracy of 500 meters will not be able to properly guide you back to Cassini Station." Dabai said, "After the navigation system of the walking car failed, the communication system alone could not complete accurate direction and ranging, and I needed at least three points. ”

"Three points?"

"Yes, including me and Cassini, there are three anchors needed, which means I need one more." "By calculating the slight delay caused by the transmission of electromagnetic waves, I was able to guess the precise direction and distance of the walking car. ”

Jiang Zi and Liang Jing understood what Da Bai meant, they looked at each other, who was going to do this positioning?

"The third anchor point needs a known fixed location, but we can't do this at the moment, there is no marker on the half-foot lake, so we have to use a compromise method, which requires a person to continue in a straight line for one kilometer in the direction of the walking car." Dabai told them the method, "Dr. Liang Jing, Mr. Stationmaster, one of you must continue to walk one kilometer further. ”

Liang Jing and Jiang Zi got out of the car and stood in the half-foot lake, the lake water was extremely calm.

"Dabai, what if this person gets lost?" Jiang Zi asked.

"I'll guide you every step of the way." "So don't worry about finding your way back, whether it's you or Dr. Liang Jing, I'll send you back to Cassini Station safely." ”

"I'll go." Liang Jing said.

"I suggested that Dr. Liang Jing stay in the pedestrian car, and Mr. Stationmaster continued to move forward one kilometer." Dabai proposed, "Mr. Stationmaster's physical strength is better than Dr. Liang Jing's, and he has more experience in outdoor work, so it will be less risky for Mr. Stationmaster to undertake this task." ”

"That's what I mean, too." Jiang Zi nodded, "It's better for me to go, Liang Gong, you can be polite and polite, don't really rob me, the deadly work is still left to the professionals, in addition, you remember to keep my last words for me, in case I can't come back, you can help me send it back." ”

"My last words are kept." Liang Jing's face was expressionless, "If something goes wrong with you, I definitely won't be able to go back." ”

"Let's go back and eat something first to replenish our strength." Jiang Zi pointed to the walking cart behind him, "The next thing to do is a strong errand." ”

Liang Jing nodded.

The two returned to the cockpit of the walking car, took off their helmets, and took apart the chef's work meal, which was fried with eggs and pork hearts.

Liang Jing poked a few times with his fork, sighed, and pushed the lunch box.

"I can't eat it."

"How can you skip a meal? If you don't eat, you don't have the strength, people are iron and rice are steel, and no matter how big the problem is, you have to eat. Jiang Zi unpacked it by himself, "Don't worry, it's okay, we can't be martyrs for the time being." ”

"That's not what I meant." Liang Jing pointed to the lunch box, "It's too unpalatable." ”

Jiang Zi took a bite.

"No matter how unpalatable it is, you have to eat it, at this juncture, how can you care if it tastes good or not...... Bah! What the hell is this doing? ”