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Flight ban. Restrictions, denial of permission to enter airspace. Cancellation. Sanctions. No fly zone. Stop the license of flying company. Closing of the airport for technical and bad weather reasons
Scientist wear Chemical protection suit check danger chemical, working at dangerous zone in Red and White Lines of barrier tape. Red and white Hazardous restricted area factory safety worker industry
Ge (Germanium) Ga (Gallium) in the periodic table with Chinese flag. US vs China chip war or tech war, microchip semiconductor industry concept. China curbs on exports of rare germanium and gallium.
Danger of rising blood pressure, health care. Salt-related diseases. Harm from salt, refusal or restriction of salty foods. Scattered coarse sea salt on a blue background and the X sign, crossed out
Staff only restricted area sign on the wall in grayscale tone. Sign and symbol for industrial working place object photo, selective focus.

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