These inconspicuous places, but very important to China, China's material science, although it has become the largest imposition of the barrel, but the capacity of the barrel, has never been the longest board, has never been the shortest, even if China has the help of the all-in-one machine, in materials science, has reached a peak level, but at most is to make China's research, no longer troubled by materials science, a lot of whimsy, can have the support of materials, but closely related to materials is a short board. Pen, fun, pavilion www. biquge。 info

Processing capacity, especially precision machining and surface machining, China is not only very poor, but basically can't find the door. Yang Yuanzhao is a mechanical engineer, he did not get involved in the processing field, especially the processing of military technology, the ordinary processing in later generations has not much use at all, and civilian facilities have been developed to the extreme.

In the military and high-precision field, surface processing has become the most common, China currently has very good materials, and even some materials are better than the materials of the 21st century, but there is a lack of processing and use of these materials, even if there are materials that can be made into tools, but there is no large-scale industrial machine, and there is no experience of high-precision machine tool center, although relying on the development of information in later generations, he knows some things, such as the machining center uses multi-axis, and even knows some three-axis, or even pseudo-four-axis methods, However, these are some simple visual or basic ones, and if you want to get them complete, you have to try, which needs to be developed step by step.

That is, it was not until 1915 that China realized this, Yang Yuanzhao directly pointed out the CNC machine tools, although the chip is there, the machine tool is also available, but it is not kneaded together, after several twists and turns, the final result can not be continued, there is no way, only from the most preliminary start of research, the accumulation of science and technology is not overnight, it takes a long time, only material science, China has an all-in-one machine such an anti-heaven artifact, can cross the level, across time and space development, But in other respects, it doesn't work.

In particular, although there are chips in the field of CNC machine tools, the level of microelectronics has also developed to a certain extent, but China's CNC machine tools are still a little difficult to produce, and finally, give up directly into the era of electronic numerical control, but choose to follow step by step, starting from the paper tape type, starting from simple, fixed processing, rather than jumping directly to the controllable CNC machine tools, so that the development is much less difficult.

The prototype of such computers and machine tools, has appeared, the technology is not a big improvement relative to now, first to eat this aspect thoroughly, and then go further, China's technology has reached a very high level, coupled with the previous results, those results are not enough to make CNC machine tools directly generated, but can promote the progress of paper tape.

In the field of CNC machine tools and industrial machine tools, China's layout is much higher than other countries in the world, there is no obstacle in the material, even on the route, there are not too many detours, the future will definitely produce results soon, but it is completely different from what he expected before, and there is no time for a few years not to mature.

High-precision machines or machines beyond this era, China is only on the original basis, a step up, but in some relatively simple things, the power of materials science is highlighted.

Take China's artillery as an example, large-caliber artillery, is the most test of materials, China's 155 artillery, the reason why it has such an effect, the design is just a very insignificant aspect, the key is the material, the charge of the Chinese shell, put on the artillery of any country in the world, no one dares to fire, only really open, I know, how mad the charge is, the power of gunpowder, at least more than 5 times the power of gunpowder in other countries, but the charge is at least more than 3 times.

In this way, the power of the whole gunpowder is 15 times that of other countries, artillery is a limit of materials, the artillery of any country, he can not use it for a long time, one or two thousand rounds is the common lifespan, the reason is very simple, artillery is just a way to use gunpowder to push out the shell, how powerful the shell can be, depending on the amount of charge, generally speaking, the designer will grasp a degree, in this degree, the power of the gun and the life of the barrel to achieve a balance, neither too fragile, A few, a few dozen, it won't work, and it won't be too weak, thousands, tens of thousands, or even permanently, so that the power of the artillery is too small.

Although new materials are used, there are some problems with the processing of the barrel, but it is not a complex surface processing, even if it refers to the Russian machine, it can still be made by using the method of a professional machine, after all, the materials that can process these new types of cannon steel are available, and it is not possible to use precision machining, but the barrel is not a precision thing, even if there is any omission, grinding and polishing can also be used.

Therefore, the materials used in the small-caliber anti-aircraft machine guns installed by the Chinese Army, not to mention the countries of the world in this era, even if they are anti-aircraft machine guns in later generations, are inferior, at this point, if the United States wants to study, it is simply nowhere to speak, and the superb degree of this material has exceeded the imagination of the United States, and it is not an exaggeration to say that it is a science fiction product.

In fact, the current understanding of anti-aircraft machine guns in the United States is only based on armor-piercing shells, and has not yet learned what anti-aircraft machine guns look like, if they know that these anti-aircraft machine guns, which can easily kill tanks, are only slightly larger than ordinary machine guns, and it is not difficult to move, will they collapse, because the level they represent has even surpassed what they can imagine.

Even if it didn't collapse, it was almost, the American technicians deduced a little, but found that the first step to understand such a weapon fell into a lot of crises, and it could not be deduced at all, although the conditions in all aspects were not met, and the data was too far away to be determined, but there was no progress at all, and the US military realized the strength of this weapon, which is an epoch-making weapon, and the technical content is much higher than which so-called bazooka.

If it weren't too dangerous, the U.S. commander would even send a certain number of tanks to try again, but unfortunately after today's war, no one will carry out this order again, this weapon is in full view, the effect of Japanese weapons is far better than the previous tank trenches, within 10 minutes, thousands of tanks have been killed one by one, this deterrent is huge.

Different from tank trenches, as long as you pay attention, or cover them with artillery fire in advance, you can still detect it, this active offensive weapon, how to measure, frontal battlefield, several kilometers of battle,

The other side can kill those tanks in such a large area, in 10 minutes, how much is the head, even if the United States has a very developed productive force, it is impossible to lose thousands of tanks every day, or even 2,000 tanks, to explore the strength and weakness of such a weapon, not to mention whether this order is issued, whether anyone executes it, even if someone executes it, they can't do it.

The understanding of anti-aircraft machine guns is ultimately limited to the data, and even some US military engineers have drawn hypothetical diagrams, which are really a big guy, this engineer according to what he knows, the standard of American 15-inch naval gun steel, plus a little bit of improvement, the final weapon is really similar to the stupid big thick, on the 155 mm barrel, 40 mm, or 15 mm eyes are drilled, even these engineers know that this is absolutely impossible, and the specific headache makes the rear headache, At best, they are qualified engineers, not experts.

In fact, after a quick horse, all the way from Juneau to Vancouver, the emergency message has been sent to the US War Department by cable, itself, the War Department is still happy about the situation on the front line, in the past few months, the front line has not achieved great results, but the loss of troops, Delved's matter should be counted on his head, should not be counted, but the result is that he was taken from office, basically the future of this life is gone.

But recently, the officers on the front line and the staff officers in the rear combined to come up with a step-tan coordination, which was just a try, but I didn't expect that with the miraculous effect, not only was the ratio of the exchange not as amazing as before, but it also encroached on many Juneau's positions step by step, making it possible for the United States to liberate Juneau.

As a matter of fact, when the war has reached this field, the United States has also come to its senses and wants to drive Japan into the sea with all its might, which is almost impossible, and even with the will to resist shown by Japan, this will be a long and long process, which may last for several years.

In this case, the United States can only retreat to the next best, first solve Juno, after taking Juno, it will be able to carry out propaganda against this at home, at least stabilize the mentality of the American people, lose Hawaii and the Pacific Islands, the blow to the United States is almost zero, the reason is very simple, these islands are too far away from the United States, but Alaska is far away, but it is the American mainland, and the loss of Alaska represents a direct threat to the American mainland, which is not the previous fantasy sneak attack, Everyone knows that ships can't go ashore, at most they will attack the port, and it is impossible to cover it all, but Alaska is different, this is a place that borders the United States and can be accessed by land.

This urgent message, which was considered to be a telegram from the front, was sent directly to the Secretary of the Army, but soon, someone heard the sound of falling objects in his office, and then the top officials were called to a meeting, and the entire War Department was immersed in a strange atmosphere, and the depressed staff did not dare to speak much, and the noise and jokes in the past were swept away in the War Department. (To be continued.) )