"Come on——! Preparation! ”

"One! Two! Three——! Hard! Hard——! ”

Tang Yue and the old cat pressed one shoulder against the Martian stray dog, and at the same time exerted force, one person and one cat gritted their teeth and made a constipation sound, and the four hind limbs slipped on the ground.

"——! harder" Tang Yue roared in a low voice, "Work harder!" It's just a little bit close! It's just a little bit close! ”

The rover was finally pushed, and the wheels trapped in the pit slowly climbed out.

"It's still a little bit ......" Tang Yue's face was flushed, sweating profusely, and he poured all the strength of his body into this last exertion, "It's about to come out!" It's out! ”

"Pulled out?"

Tang Yue's strength was exhausted, and he almost fell to the ground, unable to withstand the heavy body again, the Martian stray dog slowly retreated, and at the last moment, the wheel rolled back to the bottom of the pit.

"Will you die if you don't talk nonsense?"

Tang Yue sat down and gasped for breath, leaning on the wheel of the stray dog, and glared at the old cat viciously.

He was rather annoyed.

They had been hampered by a small pit for more than an hour, and the old cat tried to avoid the difficult terrain as much as possible while driving the Martian Stray Dogs, but it was inevitable that a few bunkers would slip through the net.

The stray dog is really not a good off-road vehicle, the grip of the wheels and the torque of the engine are outrageously low, and the old cat stepped on the accelerator to the bottom, and could only hear the wheels spinning at the bottom of the pit.

"This is not a talk, I am just expressing my sincere concern for you, long-term irregular work and rest and irregular diet, I don't know if your digestive system and gastrointestinal function are normal." The old cat also sat down and said in a tone of greeting to Tang Yue's family, "Does Brother Poop go out on time every day?" ”

"They meet me on time every day! Don't worry about you! Tang Yue replied angrily.

As a normal natural person, eating, drinking, and sleeping are Tang Yue's normal physiological needs.

One of the most difficult is Rahozza.

It is actually relatively convenient, there is a urine collector integrated inside the Mingguang armor, which is divided into male and female types, detachable, with a total capacity of 1.5 liters, everyone's urine on Mars will be recycled and reused, after leaving Kunlun Station, Tang Yue's urine is not necessary to be recycled, and the urine stored in the collector will be cleaned up every day.

Along the way, Tang Yue only suddenly asked the old cat to stop, then climbed down and stood on the ground, standing motionless for half a minute...... The old cat knew that Tang Yue was finished.

Although the urine collector is designed to prevent leakage in various postures, users do not trust it, so they can stand without sitting.

Pulling is much more troublesome.

Tang Yue couldn't stand still for half a minute, and by the way, the stool was also solved, Mingguang armor didn't have a fecal collector, so he would have to pull his pants, and Mingguang armor wouldn't be able to wear it.

In Kunlun Station, there is a toilet in the station, and the toilet in Kunlun Station can achieve a one-stop service of suction, cleaning, dehydration, drying, disinfection and packaging, but Martian stray dogs do not have this function...... So Tang Yue's savior is an empty canned food box.

This is a rather complicated process: first Tang Yue has to enter the experimental cabin to close the hatch to ensure that it is airtight, then take off the Mingguang armor, put on an oxygen mask at the same time, prepare empty cans and plastic bags, and place them steadily on the floor of the experimental cabin.

In the end, Tang Yue completely sealed this jar full of dark residue and banished him forever in the desert of Mars.

"How far have we come?"

"Seventy-nine kilometers."

"Two hundred kilometers to go." Tang Yue looked down at the control terminal on the back of his hand in the extravehicular suit, stretched out his hand and poked, the air pressure and temperature data were normal, "It's a long way to go." ”

"You carry the burden, I lead the horse, usher in the sunrise, send away the sunset......" The old cat hummed and chirped and sang a song that Tang Yue had never heard, circled around the wheel, looked around, picked up stones and put them in the pit.

Today is the third day.

In the past three days, the trip went smoothly, the Martian stray dog completed the task on time every day, and there was no mistake, as an old dog with a crippled will, it can be called a tired and dead, and it carried forward the tenacious spirit of these predecessors of the Opportunity.

The solar panels are also in good condition.

"I said old cat, is there any way to make the stray dog go further?"

"What do you mean?"

"Stray dogs can only walk 30 kilometers a day, 24 hours a day, most of the time is wasted by us, can we find a way to make it walk 40 kilometers a day or even longer? This allows us to reduce the time considerably. ”

"Why are you asking me this question?" The old cat crouched on the side of the wheel, "You're the engineer, and no one knows this dog better than you." ”

Tang Yue bit the water supply hose and slowly sucked fresh water from the water bag.

"Because I can't think of any way, it's the battery that restricts the daily itinerary of stray dogs, and if the battery capacity can't be increased, the work of the engine can't be changed."

"You already know it, why are you asking me?" The old cat said, "I can't help you tamper with the law of conservation of energy, I suggested before you set off that you also carry the batteries of Kunlun Station on the car, so as to increase the daily travel distance of the rover, but you refused." ”

"The problem is that they don't match at all." Tang Yue spread his hands, "The parameters are all different. ”

"I'm sure it's a small problem for you that can be easily solved."

"If we put the batteries in Kunlun Station on the train, then the life support system in Kunlun Station will be completely destroyed." Tang Yue said, "There is enough life on this planet. ”

"But we took all the solar panels." Lao Mao said, "The battery at Kunlun Station lacks power replenishment, and the life support system is still unsustainable." ”

"Isn't there an RTG?" Tang Yue smiled, "The pitiful power of the isotope temperature difference generator is completely insufficient to maintain the survival of human beings, but it is barely enough to take care of tomatoes, I have calculated, if I am not mistaken, the tomatoes should be able to die peacefully...... Even in the end, the plants can't survive, and there are microorganisms. ”

The old cat glanced at him, Tang Yue's tone was steady, not salty or light, it was completely the attitude that the future had been arranged, he buried human history, closed the Kunlun Station, adjusted the life support system, settled all the plants, and even made fine calculations to make them run on their own without intervention as much as possible.

Then he will be able to hit the road without any worries.

"Enough rest?" The old cat put enough gravel in the pit and patted his paws, "Come and push the cart when you're rested, and this time we'll push it out in one go." ”

"Okay."

Tang Yue got up, and the old cat was alone, pressing his shoulders and palms against the body, and glanced at each other.

"Prepare ——!"

"One! Two! Three——! Hard! Try harder! ”

"It's out! It's out! It's finally coming out——! ”

"Pulled out?"

"Holy! Old cat, will you die if you don't talk harshly? ”