Although Li Yulong has brought Chen Xin a fruit and vegetable dryer, it is not a large-scale dryer after all. Chen Xin still needs to slowly dry his rice plate by plate.

Fortunately, this machine can bake 20 plates of millet at a time, with a processing capacity of 30-40 Jin at a time. A 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 over. In addition to turning up the rice with water in the bottom layer, Chen Xin also felt the dryness of the rice with his hands.

Only when it is confirmed that the rice is completely dried and there is no moisture at all, can it be bagged and stored.

After drying more than 200 Jin of rice and pounding off the chaff, about 170 Jin of rice can be produced. If calculated by the amount of rice Chen Xin eats, he can eat for more than half a year.

As long as he can harvest twice a year, it is enough to ensure his own ration. In the greenhouse, because he does not consider the relationship between environmental temperature and humidity changes, he can calculate according to the most suitable conditions, taking 90-110 days as a cycle, planting three seasons a year.

In this way, Chen Xin can get more than 600 Jin or nearly 700 Jin of rice, more than 500 Jin of rice and more than 100 Jin of bran in almost a year.

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

"As long as the old farmer brings the fish, he can get new seeds through Bruce Lee and Alain At last, I can eat and drink without worry. " Chen Xin calculated the output of his own greenhouse, and finally had a sense of sureness.

There is grain in the hand, the heart is not flustered, this old saying that describes the people of Yan country no matter when it is put, it is particularly reasonable.

Counting the resources in his hand, Chen Xin determined that he could ensure the three people's rations. Only then did he finally put on the agenda to pick up his parents from his hometown.

The reason why he didn't consider taking immediate action before is that Chen Xin understands that it's useless to bring his parents back even if he can't guarantee enough food supply.

Now that the food supply can be guaranteed, the prerequisite for bringing back one's parents will be met, which can be considered formally.

To get his parents back, Chen Xin needs to cross the 600 kilometer road of four senior officials.

In the past, it took more than half a day to complete the whole journey by taking a high-speed, non-stop road. Now that everything is frozen and the snow on the ground is almost one meter deep, it is not easy to cross such a long road.

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

This kind of vehicle, of course, is commonly known as all terrain vehicle, which can be competent for maneuvering in a variety of complex terrain and special conditions, including jungle, mountain, desert, snow, beach, swamp, water network and lake.

Among the various all terrain vehicles, Li Yulong's modified luxury RV is also an all terrain vehicle. However, compared with his luxury RV, Chen Xin prefers the "mang style" and "Junma" all terrain vehicles equipped by the military of Yan state.

"Mang style" and "Junma" are articulated two compartment tracked all terrain vehicles. In addition to the cockpit, they can also drag a carriage behind.

Among them, the mang all terrain vehicle is a heavy-duty vehicle, which can carry 30 tons at the same time with its own weight of 30 tons.

The horse is a little smaller, with a weight of about 10 tons, a maximum speed of 60 kilometers per hour and a maximum driving distance of 500 kilometers. It can easily cross a 1.5-meter wide ditch by relying on the track, or climb a vertical obstacle of 0.6 meters and a slope of more than 30 degrees.

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

With Chen Xin's idea, getting a horse, and then transforming the rear compartment into a living cabin in the style of a RV, will be enough to meet the needs of his journey.

Of course, it would be better to have a Mangshi. After all, Mangshi's bigger and heavier car body also means that it can have larger cars, carry more materials and have larger living space.

Unfortunately, before the disaster, Chen Xin didn't think about it, otherwise Mangshi couldn't get it, and Junma could still find a way.

But now, he can upgrade his SUV to make an all terrain vehicle.

And to be honest, as the snow gets deeper and deeper, Chen Xin's SUV is becoming more and more incompetent for travel.

Without Li Yulong's one meter high tires, driving on this nearly meter thick snow, if you don't pay attention, you will sink the wheels into the snow.

So after thinking about it for a while, Chen Xin's first thought is to change the tires of his car into tracks.

If the speed is higher than the speed, of course, the tire wins. But if the capacity is higher than the speed, the difference between the tire and the track is as big as the difference in speed.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 diesel engine with high horsepower is more suitable than a gasoline engine.

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

First of all, the electric drive is more clean and efficient, and the electric vehicle is no longer a new thing. In addition to the two problems of battery and charging, which still restrict the use of electric vehicles, this new form of vehicle has been accepted and recognized, and has become the development trend of future vehicles.

As for Chen Xin, there is no large number of factors restricting the development of electric vehicles. Isotope thermoelectric battery as the power source and high-performance energy storage battery as the battery pack are enough to make an electric vehicle run for decades without stopping.

For others, it's still a remote idea in the laboratory, but for Chen Xin, it's a matter of survival upgrade.

And he is seriously prepared to do so. He plans to upgrade his car after completing the overall upgrade of the refuge.

While considering the power system and driving mode, Chen Xin is also considering how to design the car's living cabin, which is the same hatchback as mang style and Junma style? Or the one-piece car like Li Yulong's?

Both of them have their own advantages, but they also have their own problems. Chen Xin rubbed his lips and fell into thinking.

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