The petrochemical industry does not only include derivative industries such as synthetic fibers and plastics, but also includes the cracking of petroleum in a broad sense, especially the catalytic cracking, which is the first in China to be widely used on shijie, is the indisputable chemical industry. It is precisely because of this new cracking method that New China can produce high-quality refined oil with Shijie's advanced level on a relatively weak basis. Moreover, it is worth mentioning that the catalytic cracking method adopted in China is not the earliest fixed-bed catalytic cracking method in history, but the most advanced fluidized bed cracking cracking that can be applied under the current equipment and process conditions is directly launched.

However, the oil refining industry base of the United States is too good (the octane number of aviation gasoline produced in the United States during World War II is higher than that of any other power), and although the fixed-bed catalytic cracking method developed by them is relatively backward, the quality of aviation gasoline produced is slightly better than that produced in China (of course, only for a period of time), but there is a certain gap in production efficiency and cost.

However, it is this gap that stimulates Hu Weidong, as early as when fluidized bed cracking jishu was just applied to industrial production, he let people start to study molecular sieve catalysts, once successful, you can start the research of riser catalytic cracking, which is the cutting-edge jishu in the 60s in history, both production efficiency and product quality are significantly better than fluidized bed catalytic cracking. Moreover, the application of molecular sieves is far more than this use, and its potential value is simply immeasurable, but if it were not for an outstanding talent in this field in China, Hu Weidong may not be able to make up his mind to focus on it

Anyway. Thanks to the rapid development of the petrochemical industry, China's refining capacity has reached the advanced level of Shijie almost from the beginning, and it will not be at the forefront of crude oil production like the Soviet Union a few years ago, but the refined oil products are not yet self-sufficient. It is precisely because of this foundation that although China now needs to import a large amount of crude oil, as long as the supply of raw materials is guaranteed, there is no need to worry about refined oil, even if China's production of automobiles in 1941 has exceeded 100,000 units, the output of tractors has exceeded 150,000 units (including more than 100,000 walk-behind tractors), and the total output of various internal combustion engines has approached one million units

The use of tractors and a large number of agricultural machinery has freed up at least tens of millions of rural laborers, otherwise the Chinese government would not have been able to do anything. Nor is it possible to maintain an army of more than 8 million while building everywhere. It can also continue to ensure a continuous increase in agricultural production.

In the relatively vast and sparsely populated border areas, because the terrain is open and suitable for the development of mechanized agriculture, with the help of modern agricultural machinery, it is not difficult for a person to cultivate hundreds or even thousands of acres. Therefore, the reduction of the young and strong labor force in the rural areas will not have much impact. On the contrary, the peasants generally became richer because of the increase in labor productivity (as for those who were out of agriculture). Under China's current economic system, incomes are only higher than those of relatives and friends who stay in the countryside. ）； In densely populated areas such as the coastal areas and the Central Plains, half of the young and strong labor in the countryside is drained. There are still many people and few places, so there is no need to worry

If such a large number of laborers are suddenly liberated under the market economy system, the unemployment problem will inevitably explode rapidly, because no market can provide tens of millions of new jobs in a year, which is also the advantage of the Jihua economic system. In fact, if it is a market economy model, those illiterate or semi-literate laborers who have just left the countryside cannot be said to be qualified workers at all, and either they are not used at all, or they can only do those rough jobs that have no jishu content, and only the jihua economic model will tolerate their various shortcomings and patiently pay a huge price to gradually train them into qualified industrial workers. As a result, Hu Weidong also confirmed once again that for China, which has an extremely weak foundation, if it wants to complete industrialization as soon as possible, the Jihua economic stage cannot be bypassed

The production of cement and other building materials, which has been ranked first in Shijie, has also continued to develop rapidly under the stimulation of Daxing infrastructure, and because the projects built by the engineering troops are basically designed in accordance with the requirements of wartime, the level of Jishu and product quality of China's building materials industry have also continued to improve driven by demand. After Hu Weidong learned about these situations, he couldn't help but think of the phenomenon that the newly built bridges in later generations often collapsed and the seats built before the 80s were solid, and sighed somewhat helplessly, "Maybe in order to deal with those frenzied overloaded drivers in the future, the engineering troops really can't be revoked, and it seems that a lot of manpower, financial and material resources will be wasted to design according to the requirements of wartime, but considering the overload problem in the future, in fact, it is no more, no less, just right, but those new projects that seem to be more cost-effective after the reopening, Because the losses caused by the accident are only higher, I don't know if this is our special national condition."

In fact, relatively speaking, the quality of bridges with frequent accidents in later generations is still haode, if you do not consider, or even just underestimate the impact of overload, even those bridges that have collapsed accidents are mostly qualified, after all, once the bridge accident is extremely serious, so the supervision is relatively strict. Compared with this, the problem of ordinary residential buildings is greater, because they do not have to be tested from time to time like bridges, and later generations have contracted layer by layer for the sake of profits, and the result is that they generally cut corners, and the problem is not big in normal times, but as soon as the earthquake comes, there will be a very ironic scene - the older the building, the less damaged it is, you must know that those old buildings do not need to meet the requirements of war readiness like bridges, but are just very ordinary buildings, in contrast, the quality of construction in later generations cannot be washed away in any case. Therefore, Hu Weidong firmly believes that it is necessary to prevent problems before they happen, and to cut off the possibility of the emergence of the "layer-by-layer contracting" model now, so as to avoid the recurrence of historical tragedies.

However, even if the building quality is qualified, it is still difficult to survive a major earthquake of magnitude 7 or higher without a special earthquake-proof design, as evidenced by the historical Tangshan earthquake. For this reason, Hu Weidong specifically instructed Minister Li of the Ministry of Geology to temporarily put aside the work of prospecting, anyway, the ones that have been explored so far will be enough for China until 1980, and let him devote his main energy to the study of earthquakes, so as to find out China's main seismic zones as soon as possible, and classify them according to the size of their threats, so as to provide reference for the overall planning of the central government. (To be continued......)