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A motor is an electrical machine which converts electrical energy into mechanical energy. When a current carrying conductor is placed in a magnetic field, the conductor experiences a mechanical force and this is the principle behind motoring action.
A team is a collaborative group that requires a trusting relationship among team members. Trust is the cornerstone of cooperation. Without trust, there is no cooperation. Trust is an inspiration, and trust is a force. The team members trust each other when they are stressed and confused, just like the flying man who swings from the swing. He must know that someone is holding him at the other end of the rope. When faced with crisis and challenge, team members also need to trust each other, just like the hunters of the predatory animals, who must not be selfish and act together. Otherwise, at the end of the day, the team and the members of the team will accomplish nothing and nothing.
Spacecraft flew hundreds of thousands to hundreds of millions of kilometers from the earth, injecting speed when the size and direction of a slight error, arrived at target planets will appear large deviation error, for example, when Mars probe injecting speed 1 m/s speed (about one over ten thousand), arrived at Mars, about 100000 km distance deviation. Therefore, precise control and navigation must be carried out during the long flight. Flying to the moon is usually controlled by the orbital control system of the ground and space probe (see orbit control). Interplanetary flight distances, radio signal transmission time is long, the real-time remote control, can't so planets and interplanetary spacecraft orbit control system shall have the ability of autonomous navigation (see interstellar travel navigation and control). The United States, for example, "pirates" spacecraft in space flight of more than eight hundred million km, for 11 months of 2000 times of autonomous orbit adjustment, the final surface to achieve a soft landing on Mars, placement accuracy up to 50 km. In addition, in order to ensure the accuracy of the orbit control engine, the communication antenna is always aimed at the earth, and other systems work normally, and the detector has the autonomous attitude control ability
Every day the hospital comes and goes, the child is born here, the old man leaves here, the nurse, silent guardian of life. Some people will say that the heart will be hardened and numb from disease and pain every day. I can't do it. Maybe I'm too emotional. I'll try my best to do my job. The nurse this profession, the physical labor hard, the work tense, the rescue time to fight, the frustration of the people after the death makes each class come down to fatigue. For a woman, two night shifts and a heavy workload can accelerate aging. Holiday can't take care of children and families, social prejudice also let the nurse is hard to get respect, a lot of time to experience less than professional pride, often suppress quickly mad, but after wearing a nurse, must overcome his own emotions, keep calm of mind, serious three seven pairs, observe the operation procedures, implement the principle of disinfection. The specialized course teacher ceaseless emphasizes the careful sudoku, is the person's life, at any time must press the work flow, meticulously completes the various treatment.
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