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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 railway bureau is required to issue a traffic dispatch order, which is formulated by the railway bureau.
The nurses are few, the patient is many, is I from July 1984 to attend nursing work till now, has not solved the difficult problem. This is not something that a nurse can solve, but a nurse who needs to be put to the attention of the government. "The nurse management approach" and "the regulations on the nurse, expressly provides for hospital beds and the proportion of nurses is 1-0. 4, but carry out to every department of the hospital, is short of this standard. When I was working in a beachhead hospital, 10 nurses were responsible for more than 100 inpatients, except for outpatient patients. In longhui county hospital of traditional Chinese medicine, the conditions are better, and now there are 14 nurses who are responsible for the treatment of 50 or 60 hospitalized patients (there are only 52 beds in the ward, but often extra beds). When no one can replace or help we nurse care of the patient, we are going to the hospital leadership many times is useless, because the increase of the nursing staff is always can't keep up with the increase of number of patients, because when recruiting nurses, may not have enough nurses to apply for, as well as the nurse outflow phenomenon. Can't change the reality, can only change myself, nurse only work hard, to explain to patients' families more, guide them how to observe his condition, make the patient's life care, psychological care, medication nursing, functional exercise, etc., the patient very family cooperation can be achieved, to reach the expected effect of treatment and care, to avoid mistake on accident. Sometimes, nurses have to ask the doctor to help us to work together, even if they watch a office or (later only a nurse to work the night shift, nurses to ward rounds, or treatment and care, no one in the office, someone to come to the office to find doctors and nurses to do, or how someone stole drug treatment), or even please guard escort situation as well. "Aunt, please help me to look after, I go to the ward to give a patient infusion, the catheter, have a bed to call me."
Blue whales, the most important creatures within the good reputation for our planet, are sustained by tiny krill. Perhaps the Earth's bottomless appetite for non-renewable fuels can be satiated by something even smaller. Algae tend to be than the scum in addition to the pond. When properly utilized, algae can produce fuels, chemicals and materials which might be better and cleaner than petroleum-based ones.
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