Yan Changxi, Chen Feng's fourth aunt and the fourth young grandmother of the Chen family, set off for the United States of America on the other side of the ocean just two months after their marriage to open up a new base for the Chen family.

Chen Feng still has some doubts about Yan Changxi's trip to the United States, after all, she is only a nineteen-year-old girl, although she has been abroad for a few years, but she really wants to pin the hope of a country's navy on her, Chen Feng really has no bottom in his heart. But at this point, there is no more suitable candidate than Yan Changxi around him.

In addition to Hu Yi, Long Jian and Jingjing, Chen Feng also specially selected the elite of a squad from the special combat team to protect Yan Changxi, in addition, Chen Feng also selected 20 Jews, and appointed Mark, a Jewish descendant with considerable business talent, as the deputy general manager of the upcoming Dahuaxia Company.

Yan Changxi went to the United States this time, Chen Feng not only handed over the $1.12 billion deposit account in Citibank to Yan Changxi, but also handed Yan Changxi three techniques and a map, the three techniques are the patented technology of rotary gasoline engine, the patented technology of streptomycin and the technology of motorcycle production. And that map is even more important, which is a specific map of the oil and gas resources and precious metals in the United States.

These three patents and a map were all exchanged by Chen Feng with points to the system, and the three-point patented technique cost a total of 35 points, of which streptomycin is the most expensive, with an exchange value of 20 points, 5 points for engine patents, and 10 points for motorcycle patents. And that map made Chen Feng feel painful, a not very detailed map actually pitted Chen Feng with 120 points. It's all up to the price of a Mauser rifle line.

This is also the first time Chen Feng used the exchange system, Chen Feng found that this exchange system is very distinctive, the simple production of technical patents is not very expensive, even for Chen Feng to make a lot of money penicillin patent technology is only 50 points, but if it is the technical technology plus the production line to exchange together, the price can immediately increase several times or even dozens of times.

Also compared with penicillin, its production technology is only 50 points, but a production line with an annual output of 1,000 tons of penicillin costs 1,000 points, if it is like Chen Feng's lottery with an annual output of 20,000 tons of penicillin production line, its sale price is as high as 15,000 points.

In the words of the little fox to explain yes. Technique is important though. But in this era, the production line is the most expensive, and there are some things that you may not be able to produce even if you have the production skills, but with the production line, as long as the raw materials are collected, you can get the product immediately. For example, penicillin drugs. Don't foreigners have production skills in their hands? Of course not. Fleming had already invented penicillin at the age of 28. Qian En and others have been studying the technique of purifying penicillin for several years, can they have the technique of producing penicillin?

Obviously, it can't be, even if the technique is not as good as Chen Feng's. But there must be a primitive technique, after all, the drug penicillin has long appeared on the market. But why all countries in the world are rushing to do business with Chen Feng and endure Chen Feng's high price is because Chen Feng has a production line that Fleming, Qian En and others do not have, a strong production line that far exceeds people's imagination.

Take jet aircraft as an example, any one of them can throw the Zero fighter that the Japanese army is about to equip the troops a few streets away, but is it useful to have production technology alone? Without a production line, even if you get the production drawings and techniques, it is useless, because with the current level of science and technology, it cannot be produced at all.

There is also an artificial satellite, as soon as that guy goes to the sky, Chen Feng only needs to exchange a few planes for some terminal equipment, and the actions of the Japanese have nothing to hide. But just getting the production technology can't even produce a screw, and what about satellites! Therefore, unlike the patented technology in reality, the real value in the system is the physical object and the production line.

Yan Changxi went to the United States, and the production line couldn't be brought at all, unless Chen Feng personally sent her to the United States, so the only thing she could bring was production technology. Presumably, with the level of science and technology and scientific research capabilities of the United States, those things can be researched and put into production very quickly.

The reason why Chen Feng chose streptomycin and gasoline engines and motorcycles is entirely because these things are not high-tech, even if Chen Feng does not take them out, they will appear in a few years. For example, streptomycin, which is a glucosamine-type antibiotic, is the second antibiotic produced and used in clinical practice after penicillin. Its specific effect against Mycobacterium tuberculosis has ushered in a new era of tuberculosis treatment.

This antibiotic was isolated from Streptomyces in 1943 by S.A. Waxman in the United States, and even if Chen Feng did not take it out, the United States would produce this drug in another 3 or 4 years.

The same goes for the gasoline engine, which was invented a long time ago, but the gasoline engine at this time was extremely clumsy, and the sealing technology was limited, and the use rate of gasoline was extremely poor. The most important thing is that this engine is a product of the 50s, which is only a decade away from now, and it can be perfectly produced with the current production technology.

The second is the motorcycle, the motorcycle is the "father of the automobile" in Germany in 1885. Made by Daimler, it is a three-wheeled motorcycle powered by a single-cylinder wind-type gasoline engine. The cylinder working chamber is 264 cubic centimeters, with a power of 0.5 hp at 700 revolutions per minute and a speed of 12 kilometers per hour. The car is a wooden structure, the rear wheels are belt driven, and there are auxiliary support wheels on both sides. Due to the fact that the gasoline engine was still in a low-level and naïve condition at this time, the original motorcycle was very different from the modern motorcycle in appearance, structure and performance.

Now some companies in the United States have been able to produce some high-level motorcycles, what Chen Feng has to do now is to use and improve the existing technology in the United States, the modern version of the motorcycle production, Chen Feng has studied in detail, the United States Harry Company in 1936 can produce a motorcycle equipped with 1000mL, OHV, 27.93kW V-twin engine, its maximum speed of 150km/h, such technology can produce Chen Feng from the system to exchange the form of motorcycle.

Although exchanging some other techniques with higher technology content can achieve technical monopoly and market domination, it will take a long time to promote the market, which does not meet Chen Feng's hope, or these three things are more suitable for Yan Changxi.

In addition, in the next few years, drugs and munitions are the protagonists, everything else is nonsense, and whether it is engines and motorcycles, they are all linked to munitions, and it must not be a problem to make money.

And that map is the foundation of Yan Changxi's visit to the United States this time, that map records the distribution of oil and gas resources and precious metals in all North American countries, including the United States, Mexico, and Canada. The precious metals are different, the Americas are famous for a lot of gold, even in the 21st century, large gold mines are often discovered, this map records the detailed addresses of hundreds of large gold mines.

Presumably, with these oil fields and gold mines, Yan's team should soon be able to gain a foothold in the United States. Moreover, the Morgan family, the Rockefeller family, and the DuPont family all agreed to take care of Yan Changxi.

Yan Changxi left, leaving with Chen Feng's expectations. In addition to opening a second base for the Chen family, the most important thing for her to go to the United States is to circle money, and after collecting money, she buys a dock and a factory. Then weapons and equipment were manufactured, large warships and other high-level equipment needed by the navy and army.

Since Yan Changxi already had an archive with the Japanese army, Chen Feng did not dare to let her take a ship from Shanghai and other places to the United States, but borrowed Hong Kong through the Morgan family's convoy, and then took a boat to Los Angeles in the United States.

After Yan Changxi left, Chen Feng felt empty in his heart, and unconsciously this beautiful and intellectually beautiful girl had entered his heart, and Chen Feng was quite reluctant to go. In this troubled world, this farewell is not when we will be able to meet again, or I don't know if there is a chance to meet again.

But for the sake of the country and the nation, but also for the sake of the old Chen family, this kind of distinction is necessary, in that land where the war cannot be burned, Chen Feng must have a spokesperson, a trustworthy spokesperson.

Soon, Chen Feng's reluctance was driven out of the clouds by his busy work, the new year and the new weather, after March, the spring in Saibei will soon come, ploughing land in April and planting in May, due to the influx of a large number of people, food has become the biggest problem in the Eighth War Zone.

In order to alleviate this pressure, the Chahar provincial government successively promulgated a number of laws and regulations to encourage the people to reclaim the land, and at the same time, the Ministry of Armed Forces also issued orders to the garrison regiments in the rear to reclaim the land, for which Chen Feng specially imported more than 500 large agricultural tractors from the Soviet Union.

In addition to the large-scale agricultural reclamation, a large number of factories were relocated to the defense zone of the Eighth Theater last year, and these were all enterprise factories in Shanxi, Henan, and Hebei, and the troops of the Eighth Theater gave them confidence, and the preferential policies of the Ministry of Commerce also played a great role.

In addition, the Baotou Heavy Industrial Zone has also developed very rapidly, with the assistance of the industrial machine tools and precision lathes provided by Henry, Chen Feng has successively built three production lines for AK47 assault rifles, one production line for Type 75 anti-aircraft machine guns, one Line for Type 79 sniper rifles, and more than 10 production lines for other rifles, and 47 large military enterprises have gathered intensively within more than 30 kilometers west of Baotou City.

However, after just two or three months of Anxin development, the Japanese army made new moves, which made Chen Feng have to refocus his work on the military side. (To be continued......)