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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
Nocturnal emission actually happens when the semen held in your body surpasses its maximum capacity. In that case, the body eliminates the extra semen through nightfall. This allows our bodies to take care of the hormonal balance. The male once enters the sexually active phase of his life; the issue vanishes on its own. The possible nightfall triggers are:
The Geneva motor show known as the "international motor trend indicator", is only the annual auto show in Europe, the rice fort in Geneva airport international exhibition center, a total area of 70000 square meters. The Geneva motor show was founded in 1905. It has been held annually since 1931 in Geneva, Switzerland. The exhibition is held in March every year to showcase luxury cars and high performance reloading vehicles. The exhibits are more personalized. In five major auto show, Switzerland is a country with no auto industry only, but to undertake one of the world's most famous auto show, it always can attract 30 countries each year more than 900 car exhibition, is one of the important auto show in the world. All the booths were visible from the lobby of the Geneva motor show, because the Swiss exhibition rules were detailed and detailed, not allowing large company signs and booths to block the view. The Geneva international motor show is held in Geneva, Switzerland. annual
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