Nine days is China's space probe, which is used to carry out the space science mission of China National Space Administration. The energy time series diagram is a diagram that describes the changes of energy or energy time series, and the relevant explanations are as follows:

1 and Jiutian are space probes independently developed by China. It uses advanced energy technologies, including solar panels and fuel cell systems, to ensure its normal operation in space. It can help researchers better understand and manage the energy system, improve energy efficiency and reduce environmental pollution.

2. Energy sequence diagram is a diagram describing the changes of energy or energy time series, which can provide information about energy utilization efficiency and energy demand. During the nine-day mission, the energy sequence diagram can help researchers understand the operation of their energy system and evaluate its performance and reliability.

3. Through the analysis of energy time series, researchers can find out the problems existing in the energy system and the improvement direction, so as to improve energy utilization efficiency and reduce environmental pollution. The energy sequence diagram can also provide reference and guidance for the design and implementation of other similar space missions.

Characteristics of space

1, vacuum environment: Space is an almost complete vacuum environment without air, water vapor or other gases. This vacuum environment has a great influence on the existence and behavior of matter. For example, in space, objects will lose the gravitational constraint of the earth and become floating or suspended in the air.

2. Extreme temperature: The temperature in space is extremely changeable. Near the sun, the temperature can be as high as several thousand degrees Celsius, while far away from the sun, the temperature can drop to near absolute zero. This extreme temperature has a great influence on the state and behavior of matter.

3. Accessibility: Space is an environment with almost no obstacles, and there are no obstacles from air, water or other substances. This barrier-free environment makes it possible for objects to move in a straight line for a long distance in space, and it also increases the difficulty of navigation and positioning in space. In space, objects are not bound by the gravity of the earth or other celestial bodies and are in a state of weightlessness.