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When heating, if the body temperature does not reach 38.5 degrees, it is better not to take the antipyretic medicine, can try physical cooling, including drinking water, warm water bath, hot stick and so on. Only if the body temperature exceeds 38.5 degrees, it is necessary to use the antipyretic medicine, taking the medicine and encouraging the child to drink more water, so as to increase the skin's heat dissipation, increase urination and so on, and achieve the effect of controlling body temperature. When heating, do not cover the child to sweat, can cause the water in the body to be lost through the skin, may appear "dehydrated" phenomenon. Use ice packs or ice stickers to remove some of the heat from the skin, but the local skin vessels contract and the cooling effect is limited. In addition to drinking lots of water, you can also take hot baths and hot wet compresses to help heat the heat.
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
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