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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
The UK glass industry is pursuing an active programme on energy efficiency and decarbonisation. But building the business case to secure funds remains a barrier. Capital costs can be very high and paybacks periods are often in excess of two years; traditional loans are usually unattractive for this work.
Mahindra & Mahindra is the world’s largest multi-utility vehicles manufacturer that has recently announced to create new product platforms as well as Ssangyong Motor Co. inside upcoming several years. Company has acquired 70% shares with the Korea-based Ssangyong Motors this season. As per some reliable official sources Mahindra & Mahindra is planning to launch four to five new electric four-wheelers including Mahindra Reva NXR, a universal SUV plus a 4 meter variant of Mahindra Verito. Mahindra has submitted the Gross revenue of Rs.7294.3 crore using the growth of 20.9%by the finish of June 2011.
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