1st LD-Writethru: Xi sends congratulatory letter to 32nd congress of ICAS

BEIJING, Sept. 6 (Xinhua) -- Chinese President Xi Jinping sent a congratulatory letter to the 32nd Congress of the International Council of the Aeronautical Sciences (ICAS), which opened in Shanghai on Monday.

In his letter, Xi noted that aeronautical science and technology is one of the fields that has developed most rapidly since the 20th century and had the greatest impact on human life and production.