Explain what the process of concentration of production and capital in industrialized countries meant

The concentration of production is understood as the economic process of gradual concentration in the hands of a very limited number of enterprises of the means of production and labor. In different situations, the concentration of production can be both positive and negative. Concentration can lead to better and cheaper products. After all, a large enterprise can afford to spend a significant part of the capital on the purchase of more modern machines, equipment, develop the most modern technologies, and carry out large projects. On the other hand, the concentration of production can lead to the emergence of a monopoly, which means to a sharp decrease in competition, high prices for mediocre products (they will still buy, there is no one else).
The concentration of capital is understood as a way of increasing it by capitalizing surplus value. The concentration of capital leads to the concentration of production. This, in turn, leads to an even greater concentration of capital.