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From staple foods to nonstaples, from meat to vegetables, the menu design is of high quality and appetizing for astronauts. Famous stir-fried Chinese dishes like shredded pork with garlic sauce and Kung Pao chicken are both on the menu.

A foldable kitchen, with two cabinets, microwave, refrigerator and water dispenser, had been sent to space by Tianzhou-2 last month.

Ventilation is important for a comfortable indoor environment. To prevent astronauts from getting cold, the space station is designed to offer different wind speeds in sleeping and working areas. The wind speed is 0.08 meters per second in the working area and 0.05 in the sleeping area.

The noise level in the working area is 58 decibels and 49 in the sleeping area. The noise level for an ideal sleeping environment is 30 to 50 decibels.

The astronauts can remotely control the household appliances in the cabin through tablets, such as the refrigerator, water dispenser and microwave.

They will work and rest according to Beijing time. It takes the space station 90 minutes to circle Earth, allowing the astronauts to see up to 16 sunrises and sunsets in 24 hours.

To keep their biological clock from being disrupted, the space station features a scene lighting system in the cabin, including the dusk and daytime modes. (Xinhua)