The adult "Nilkoc" is three feet tall, walks upright, has brownish-yellow skin, smooth and elastic skin, has two large thumbs on each foot, four fingers on each hand, a disproportionately large head, a peach face, a pinch of hair on the top of the head, a pair of unusually large eyes on the face, purple pupils, and ears that grow horizontally like a cone, and has a highly developed bronze social civilization, with its own writing and a sound state system and army.

It is worth mentioning that the Nilkoco have established a "highly unified" kingdom in the central basin plain of Spirit Realm Island, with a population of about 4.5 million people, and the reason for this is their natural enemies.

Due to the height disadvantage of the Nirkocco people, the carnivores on the island, eagles and skuas in the sky are their natural predators.

Their domesticated animal power turned out to be a large rabbit, poultry, and large marsupial dogs, and they used rabbits and marsupial dogs, just like human cattle and horses, as the animal power for cultivating the land, and they traveled in small wooden carts pulled by rabbits or marsupial dogs.

Predators such as jackals, wolves, lynxes, and wild cats are the greatest natural enemies of the Nirkocco people, and even rats are enough to threaten them, but there are no large carnivores such as lions, tigers, and leopards on the island, and for them, big cats are tantamount to monsters, and even wild boars can threaten them.

Pressed by the harsh living environment of nature, the Nirkocco tend to be internally united and intelligent, so the core task of the Nirkocco "army" is to defend against wild beasts, and in the event of a civil war, the beasts are large enough to destroy their home.

Due to the island's abundance of wildlife, the kingdom of the Nirkoc people is located in the middle of the island, so they almost never leave the island, the vast majority of people have never seen the sea, and they are not even as productive as a county in the Hamham country. But they also grow corn, millet and millet for food, and there is no rice, and although the yield is very low, it is enough for them to eat and store, and they are also found to grow corn.

As an accidental discovery, the Nilkoc clan is temporarily classified as top secret and listed in the top secret archives, and will not be released to the public for the time being.

After Bailiyan learned the news, she sent a technical investigation team to Lingjing Island to further investigate the details of the whole island, learn the language of the Nilkoco people, understand their civilization activities, and provide a foundation for future exchanges.

In order to prevent the introduction of external pathogens into Lingjing Island and cause extinction to the Nilkoco people, an isolation camp has been established on the southeast island of Lingjing Island, which can only be landed on the island after disinfection for one month to prevent the introduction of foreign diseases.

At the end of that year, most of the princes ushered in the first month of the 649th year of the Shengyuan Dynasty in peace, under the watchful eyes of the public, the economy of Xianguo miraculously developed rapidly, and achieved a huge income of financial precious metals at an almost astonishing speed in that year.

The Jin, Zhi and other countries also took the tailwind ship of the Xian State, and the economies of the two countries prospered and improved, and the eastern part of the entire Central Plains became unprecedentedly prosperous.

In February of that year, the first 80 millimeter (about 72 mm) mortar rolled off the assembly line, and at the same time, a 45 millimeter (about 40.5 mm) single-shot single-barrel grenade launcher was successfully developed.

The emergence of the mortar is undoubtedly an epoch-making weapon, although it is still a breech loading, but the integration of the propellant, the projectile body, and the fuse makes the mortar the fastest rapid-fire artillery at present.

The grenade launcher will be used to make up for the dead end of the mortar firing boundary, and can also be used to launch signal flares, flares, incendiary bombs and other special shells, enriching the combat needs and almost stepping into the advanced ranks of the times.

With the rapid development of science and technology, new things have sprung up one after another, and after two years of production patience and industrial expansion, the industrial output value of Xianguo has soared rapidly, and the results have been better than expected.

The total industrial output value has increased sixfold on the basis of the beginning of 646, and the machining capacity has increased to four times, excluding copper, tin, special steel, tool steel, tool steel, and engineering steel, only pig iron and carbon steel have exceeded 45 million catties at the end of last year, which is nine times the output of 643.

Another construction of 400,000 pounds of blast furnace, the huge furnace is more than eight zhang high, the city wall can not hide its majesty, from a distance it looks like an upside-down bowl, it is very spectacular, the first phase of steel output is expected to increase four times on the basis of last year, the second and third phases will be increased on the basis of the first phase of the triple production capacity.

At the beginning of March, the Ganfu County Pig Iron Plant was put into operation, as one of the largest industrial projects transferred from Yongxing City to the outside world, the construction of Ganfu County pig iron production along the river, with unique water diversion and "sewage" convenience.

At the same time, as the hinterland of the Central Plains, pig iron produced in Ganfu County will be prioritized for the production of agricultural tools, so agricultural tool molds and traditional iron processing will also be transferred to meet the growing consumer demand in the future.

But it also had to face another serious problem, Ganfu and Dekang County are across the river, completely within the range of the current princes' artillery, and will become the primary economic target of the defense of the country in wartime.

Of course, if it can be captured, for Weiguo, the production capacity of millions of catties of pig iron a year is tantamount to a windfall from heaven. One day, when the two countries went to war, there must be guard artillery deployed opposite the pig iron plant to threaten the Xian army.

It seems to be an unintentional mistake, but in fact, Bailiyan did it intentionally. The pig iron plant was located here within the range of the patriotic artillery, but its artillery position was not within the range of the Xianjun artillery, and the pig iron yard was placed here to attract the patriotic artillery and annihilate it.

The patriotic artillery is rough and inaccurate, God forbids if it can fire one shot in five minutes, and it boasts that it can hit the target for 14 miles, but it really hits the target with a solid projectile from 14 miles away, and its dispersion rate exceeds a radius of 150 meters.

Therefore, the practical range of most artillery pieces at present is much larger than five or even three miles, and ordinary artillery of the Xian army can easily destroy them, let alone mortars.

In mid to late March, after intensive preparation and research and design, the iron bridge connecting the east and west cities of Yongxing began to start, the iron bridge will span both sides of the Yongxing River, and more than a dozen piers will be built in the river to support the weight of the bridge.

At the same time, the steam locomotive and transmission components research tends to mature, the prototype car in August last year, after the test adjustment, and build an improved prototype, in the first month off the assembly line, in mid-February after the final technical test, will be in mid-April outside the north gate 30 miles outside the test railway test, the national subgrade exploration work in the first half of 648 began to roll out.

In view of the vast territory of the Central Plains, Bailiyan was determined to build a two-way broad-gauge railway, crossing the east and west of Xianguo, and the construction of iron bridges in Yongxing City was not only to solve the traffic problems on both sides of Yongxing, but also to provide experience for the construction of railway bridges.

Broad gauge railway carries large load and runs smoothly, but compared with standard gauge or narrow gauge, the construction cost of broad gauge railway is high, the technical starting point is high, and the structural strength of the vehicle is higher than that of standard gauge, and the turning radius of broad gauge is larger at the same time, and the turning radius of narrow gauge is smaller, on the contrary, the shortcomings of broad gauge railway are the advantages of standard gauge and narrow gauge railway.

Infrastructure investment will not only stimulate domestic demand and demand for steel expansion, but also provide strong logistics and transportation for the east-west economy, solve the transportation of grain, livestock, and population in one fell swoop, greatly mobilize economic vitality, and completely change the form of war.