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Companies such as Tianjin Deepinfar, alongside others such as Edgetech in the United States and Rovco in the United Kingdom, produce what are called AUVs, or Autonomous Underwater Vehicles. These are robotic devices that are equipped with underwater propulsion systems complete with onboard computing abilities to navigate obstacles independently. Every area, from the military to science, has seen the advent of such machines, and their phenotypes vary wildly, just as much as their marine biological sea creature counterparts.
Companies return from holiday to make masks, goggles, protecticve suits
Companies pointed to high certification/registration fee, long processing time and tough requirements as the common obstacles.
Communities and villages across the capital must set up four different colored trash bins, said Li Rugang, deputy director of the Beijing Urban Management Commission.
Confucius once said: It remains unknown whether someone can achieve great things if he never keeps his promises.
来源：资阳报