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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 young dutchman's luck has changed within the last week as Formula 1 headed to Monaco for which is definitely the jewel inside the crown from the F1 season. Verstappen silenced his critics during the 'free practice' sessions about the Thursday prior to the race by driving round the street circuit in the 3rd fastest time. Fellow drivers and race pundits alike praised Max for his pace around a circuit which is incredibly tough to master using its narrow track and tight bends that leave no room for error. But his inexperience showed on race day when he was wanting to overtake Romain Grosjean's Lotus at the Sainte Devote corner and wound up causing a huge collision. Having placed his car in prime position to overtake the Frenchman. Verstappen was caught out when Grosjean braked sooner than expected before the corner and crashed in the rear right wheel of the Lotus. Verstappen's front left suspension broke on impact and his car crashed in to the barrier at substantially more than 100 mph. The Lotus could continue with no obvious damage and fortunately, Verstappen escaped unharmed from the cockpit. Those watching the race continue to exist TV has the best angle around the accident because the live footage on the time was through the onboard camera next to the driver's helmet.
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Now you have to test if there's enough tension on the coil spring to retract the lead properly before you can place the leash cover back on. When you have tested the tension in the lead place a clothe pin for the part from the lead that you have herniated with the mechanism therefore it doesn't turn back in the case. Then you can put the spouse of the case back and secure both the halves together with the two screws.
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