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Space probe according to the detection of object is divided into lunar probe, probe and interplanetary spacecraft, small body such as a space probe to leave the speed of the earth must be large enough to overcome or get rid of the earth's gravity, realize the deep space flight. The probe orbits the heliocentric elliptical orbit (double-cut orbit) that is tangent to the earth's orbit and the planet's orbit, and may meet the target planet; Increase speed to change the orbit, flew to target the planet can shorten the time in order to ensure the detector fly the double track to the planetary orbits and tangent with the target when the target planets also run to it, must be chosen in the earth and the target planet at a particular moment of relative position detector. Detector can fly around the star, the use of planetary gravitational fields accelerate continuous multiple planets orbit the significant characteristic of space probe is, flying in space for long time, the ground cannot real-time remote control, so must have the ability of autonomous navigation; To fly outside the solar system, away from the sun, solar arrays, and nuclear energy systems; It is necessary to adopt special protective structure to withstand very severe space environment. Landing or walking on the surface of the moon or planet requires some special form of structure
The 2010 Audi R8 lineup gains a new, better model. This 2-seat exotic car has Audi's quattro all-wheel drive as well as a mid-mounted engine. The entry-level 4.2 has a 420-horsepower 4.2-liter V8 engine. New for 2010 will be the 5.2, which carries a 525-horsepower 5.2-liter V10. Both models can be obtained which has a 6-speed manual transmission or Audi's R tronic 6-speed automated manual. Available security features include ABS, traction control, antiskid system, side airbags, and knee airbags. Standard features on all R8 models include leather upholstery, heated seats, and wireless cell-phone link.
Designed by Shandong High Speed Croup, the building was were only available in December 2006 and take care of in December 2010, after 14 numerous years of planning researches since 1993, which employed 30,000 workers to develop, and used 450,000 a lot of steel and a couple of.3 million cubic meters of concrete, having a total investment of approximately 9 billion yuan. The open from the bridge will decrease traffic time from Qingdao to Huangdao District by at the very least 20 mins and release pressure about the Jiaozhou Bay Expressway. Furthermore, the Qingdao Haiwan Bridge will be the starting area of national expressway from Qingdao to Lanzhou and the key part of high way net of Shandong.
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