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Typhoon Du Surui is a strong theme.
Typhoon Du has a strong subject, and the answer is mathematics.

Typhoon Du introduced:

Super typhoon Dusuri (English: Super Typhoon Doksuri, international code: 2305, Joint Typhoon Warning Center: 05W, Philippine Atmospheric Geophysical and Astronomical Service Administration: Egay) is the fifth named storm in the Pacific typhoon season in 2023.

"Du Surui" was provided by South Korea, which means a bird of prey and an eagle to replace the "butterfly" which was replaced because its pronunciation is similar to the Arabic word "prophet". This time, it was used by a "Du" for the third time.

Typhoon Du was generated in the northwest Pacific Ocean on the morning of July 2, 2023/KLOC-0. Since then, it has gradually developed and strengthened, reaching the super typhoon intensity of 17 (62 m/s) recognized by the Central Meteorological Observatory on July 25th. Landing on Fuga Island in the Philippines in the early morning of July 26th; On the evening of July 27th, it was upgraded to a super typhoon again;

On the morning of July 28th, it landed on the coast of Jinjiang City, Fujian Province with a strong typhoon level (15, 50m/s, 945 hectopascals) recognized by the Central Meteorological Observatory, making it the second strong typhoon to land in Fujian since it was recorded completely. Finally, it weakened into a tropical depression in Anhui on the morning of July 29th, and was stopped by the Central Meteorological Observatory on the same day 1 1. However, the residual circulation after its stop continues northward, affecting many places in North China.

Typhoon Du caused serious disasters in the Philippines and China, and its residual circulation caused extreme rainstorm in Beijing, Tianjin and Hebei, causing serious disasters.

By August 4th, 2023, 29 people had been killed, 165 people were injured, 1 1 people were missing, and the economic loss exceeded 5.5 billion pesos. 2 1 person died, 19 people were missing, 1 14 people were injured, and the direct economic loss in July was1474 million yuan.

In order to avoid the confusion of typhoon names, the countries and regions concerned decided to unify the names of typhoons at the 30th meeting of the Typhoon Committee of the World Meteorological Organization held in Hongkong, China from October 25th to February 25th. Among them, tropical cyclones in the northwest Pacific and the South China Sea.

Named in Asian style. The naming method is to make a naming table in advance and then reuse it year after year in sequence. The naming table *** 140 is provided by 14 member countries and regions in the Asia-Pacific region to which WMO belongs.