China's first experimental production line of polycrystalline silicon with an annual output of 100 tons and with its own intellectual
property rights has been passed appraisal. This shows that China's polycrystalline silicon production has been up to the world level.

During the past 50 years, China has made remarkable achievements in the fields of science and technology, as follows:
The discovery of the Daqing Oilfield

In 1953, the leading geologist Li Siguang, based on his geomechanics theory and thorough geological investigation, pointed out that China had abundant oil and gas resources. In the morning of September 26, 1959, oil was extracted near Daqing City, Heilongjiang Province. Through the painstaking efforts of oil workers, it took only three years to construct the Daqing Oilfield, which soon reached the advanced world level, with an annual output of more than 50 million tons of crude oil. The Daqing Oilfield provided valuable experiences for the further development of the Chinese petroleum industry.

The building of the first atomic reactor

On June 30, 1958, China built her first heavy-water reactor and circular accelerator. This atomic reactor had a thermal power of 7,000-10,000 kw, and its circular accelerator could accelerate alpha particles, making its energy output reach 25,000,000 EV. In December 1980, China built a high-flux atomic reactor, indicating that Chinese nuclear technology had reached the advanced world level.
The successful testing of atom and hydrogen bombs
On October 16, 1964, China successfully detonated an atomic bomb in Lop Nor in the Xinjiang Uygur Autonomous Region, thus becoming the third country to possess the atom bomb, following the United States and the former Soviet Union. In June 1967, China successfully detonated its first hydrogen bomb.

The synthesis of crystalline insulin

After six years of arduous work, in cooperation with other research units, the Biochemistry Institute under the Chinese Academy of Sciences, on September 17, 1965, synthesized crystalline bovine insulin, a bioactive protein. China thus became a world leader in this research field.

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