Although Li Yulong sent Chen Xin a fruit and vegetable machine, this is not the kind of large-scale dryer after all, and Chen Xin still needs to slowly dry the rice he harvested one by one.

Fortunately, this machine can roast twenty plates of millet at a time, with a processing capacity of thirty or forty catties at a time, one bag of millet can be dried in two times, and three bags of millet are only six times.

From time to time, he put his hand in and turned it, in addition to turning over the millet with moisture at the bottom, Chen Xin was also feeling the dryness of the rice with his hand.

Only after confirming that the paddy is completely dried and does not feel any moisture can they be bagged and stored.

After more than 200 catties of rice are dried, and then the bran is removed, about 170 catties of rice can be produced, and if Chen Xin eats alone, he can eat more than half a year.

As long as he can harvest twice a year, it is enough to ensure his rations, and in the planting greenhouse, because he does not need to consider the relationship between environmental temperature and humidity changes, he can calculate according to the most suitable conditions, with a cycle of 90-110 days, planting three crops a year.

In this way, Chen Xin can obtain more than 600 catties, close to 700 catties of rice, more than 500 catties of rice, and more than 100 catties of bran in addition to this.

Coupled with the fact that he can harvest hundreds of catties of vegetables every month in the greenhouse, so much food is enough to feed two or three people.

"As long as the old farmer brings the fish again, he can get new seeds through Xiaolong and Ah Lan...... Finally, I can eat and drink without worrying. Chen Xin briefly calculated the output of his planting greenhouse, and finally had a sense of steadiness.

With food in your hands and no panic in your heart, this old saying describing the people of Yanguo is particularly reasonable no matter what time it is.

Counting the resources he had in his hands and making sure that he could ensure the rations for the three people, Chen Xin finally went back to his hometown to pick up his parents, which was officially put on the agenda.

The reason why he didn't consider taking immediate action before was because Chen Xin understood that if he couldn't ensure enough food, it would be useless to bring his parents back.

Now that the food supply can be guaranteed, there are prerequisites for bringing your parents back and you can officially consider it.

To pick up his parents back, Chen Xin needed to cross a journey of more than 600 kilometers from four high-ranking officials.

In the past, it was possible to walk at high speeds, and it took more than half a day to complete the journey without stopping, but it is not easy to traverse such a long journey in today's environment where everything is frozen and the snow on the ground is almost a meter deep.

Therefore, the first thing Chen Xin needs is a car that can cope with the current environment, and can run the whole distance and run back and forth.

Of course, this kind of vehicle is generally called an all-terrain vehicle, which can be competent for maneuvering in a variety of complex terrains and special conditions, including jungles, mountains, deserts, snow, beaches, swamps, water networks and lakes.

Among the wide variety of all-terrain vehicles, such as Li Yulong's modified luxury RV, of course, it is also an all-terrain vehicle, but compared with his luxury RV, Chen Xin is more inclined to the two types of all-terrain vehicles equipped with the Yanguo military, "Mang" and "Horse".

Both "Mang" and "Steed" are articulated hatchback-tracked all-terrain vehicles? Besides the cockpit? You can also tow a car in the back.

Among them, the reckless all-terrain vehicle is a heavy-duty vehicle, which can carry 30 tons at the same time as 30 tons? It is a very powerful and reliable large carrier vehicle.

And the steed is slightly smaller? The weight of the car is about 10 tons, and the maximum speed is 60 kilometers per hour? The maximum driving distance is 500 km, and you can easily cross a ditch with a width of 1.5 meters with the help of tracks? Can you also climb over a 0.6-meter vertical obstacle? Climb slopes above 30°.

Compared with Chen Xin's own SUV, the gap between the two is simply like the difference between an elephant and a horse.

With a new idea, get a steed, and then transform the rear compartment into a living cabin in the style of an RV? It was enough to meet his needs for this journey.

Of course? It would be better if there was a Mang, after all, the larger and heavier body of the Mangstyle also means that you can have a larger cabin, you can carry more materials, and you can have more living space.

It's a pity? Chen Xin didn't think of this before the disaster, otherwise he wouldn't have been able to get it recklessly? The horse can still think of a way.

But now, he can still upgrade his SUV? Modified out of an all-terrain vehicle.

And let's be honest, as the snow gets deeper and deeper? Chen Xin's SUV is indeed becoming more and more incompetent for the use of travel.

Don't have the one-meter-high tires of Li Yulong's modified RV? Driving on this nearly a meter of snow? If you're not careful, you'll get your wheels stuck in the snow.

So after thinking about it, Chen Xin's first thought was to change the tires of his car to tracks.

If it's speed, of course, the tires win, but if it's about capacity, the difference between the tires and the tracks is as big as the difference in speed.

If the track is replaced, the engine must also be transformed, after all, the load of the track is greater than that of the tire, which requires the engine to have a stronger output power.

In this case, a high-horsepower diesel engine is indeed more suitable than a gasoline engine.

However, for the power system of this car, if it is to be modified, Chen Xin prefers electric drive rather than fuel power.

First of all, electric drive is cleaner and more efficient, electric vehicles are no longer a new thing, in addition to the battery and charging two problems still restrict the use of electric vehicles, this new form of car has long been accepted and recognized, becoming the trend of future car development.

For Chen Xin, there is no factor restricting the large amount of electric vehicles, isotope temperature difference battery as a power source, high-performance energy storage battery as a battery pack, enough to make an electric car run for decades without stopping.

For others, this is still unattainable in the laboratory, but for Chen Xin, it is also a matter of smashing the survival point and upgrading.

And he was seriously prepared to do so, intending to upgrade his car after completing the overall upgrade of the Vault.

While considering the power system and travel mode, Chen Xin is also considering how to design the car's living compartment, which is the same hatchback as the reckless and horse? Or is it the same one-piece as Li Yulong's car?

Both of these have their own advantages, but they also have their own problems, Chen Xinmo rubbed his lips and beards, and fell into thought.