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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
Mercedes-benz, the German car brand, is considered one of the world's most successful premium car brands. The perfect technology, the quality standard, the innovation ability, and a series of classic car sports car style is admirable. Internationally, the brand is often referred to as Mercedes, while mainland China calls it "mercedes-benz" and Taiwan translates as "bingshi" and Hong Kong translates as "ping zhi".
Some of typical family fridge problems might be predetermined yourself, you have to start using a qualified to handle complex restoration perform. Even though the fridge may start looking span and spic externally, it does not necessarily mean that the device is performing efficiently through the in. Incessant requests around the repairman and several concerned times adhere to, till you ultimately buy it fixed going back to its standard express. Did you realize there are specific methods for you to definitely keep the family fridge operating smoothly? One can find in fact some strategies to repair the apparatus yourself, without depending on your normal assistance.
AUDI A4 GPS share some features, like: 2 Din 7.0" HD Digital Screen car DVD players with resolution of 800 x 480; 3D OSD menu; Multi-function IR handheld remote control. Audi A4 GPS is compatible with those video formats: MP4, DIVX, DVD, VCD, SVCD, CD, MP3, and CD-R-RW. This AUDI A4 GPS has built-in GPS Navigation and auto-ID intelligent language navigating. It supports Dual zone function which allows music playing and GPS navigation reporting concurrently. In addition to regular options that come with AUDI DVD Navigation, Audi A4 GPS also supports steering wheel, with many audio and video output and rear monitor video interfaces. Some with the advanced model has build in DVB-T tuner. Audi A4 comes with a built in factory music system which can be of the identical excellent with AUDI A4 GPS. But still many individuals opt for alternate AUDI DVD Navigation to enhance the performance along with the power of the entertaining system. Audio enthusiasts especially are in love with new Audi A4 GPS, speaker subwoofers etc. In order to customize the audio system and connect new Audi A4 GPS, the default audio system ought to be removed. This ought to be removed carefully or else the air system could get damaged.
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