1, guns and controlled knives.

2. Fireworks, firecrackers and lighters.

3. Alcohol and drinks.

4. Cosmetics should be controlled within the range of 100ml (that is, the total capacity is within 100ml), not the capacity of the contents, but the volume capacity of the bottle, and it should be in a sealed bag (the same is true for medicinal oil).

5. Personal batteries such as mobile phones, cameras, notebook computers and video cameras can be carried with you, but they cannot be checked.

6. Small scissors, fruit knives, razors, eyebrow trimmers, kitchen knives and other household knives must be checked.

7. There are also some radioactive and toxic substances, which are prohibited by national laws.

8. Iron bottles containing flammable substances such as fragrance fresheners, mousse and pesticides cannot be brought or checked.

Historical background

Aircraft is a heavier-than-air aircraft flying in the upper, middle and lower atmosphere, which is produced by wings with fixed fuselage. The airplane is one of the most important inventions in the early 20th century, and it is generally believed that it was invented by the Wright brothers in America.

Their flight on 1903 12 17 was recognized by the International Aviation Federation as the first controlled sustained power flight by a heavier-than-air aircraft. In the same year, they established Wright Aircraft Company. Since the invention of the airplane, it has become an indispensable tool of modern civilization. It profoundly changed and influenced people's lives and opened the history of human conquest of the blue sky.

Refer to the above content: Baidu Encyclopedia-Aircraft