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Daily life on earth is nearly impossible without electricity. From homes to big industries, many of us be determined by electricity. We know that electric current flows in a very closed circuit. An electrical circuit is really a closed loop by which continuous electrical current goes from your supply to the load. If you are looking to describe a circuit for your friend or neighbor, chances are that you must draw the bond. For example, if you need to explain a lighting circuit, it can take added time to attract the bulb, battery, and wires because folks draw various components of the circuit in another way and this will take quite a long time to clarify. Therefore, a way is usually to learn how to show simple electrical circuits. In this article we provide drawings for a few simple electric circuits: AC lighting circuit, battery charging circuit, energy meter, switch circuit, air cooling circuit, thermocouple circuit, DC lighting circuit, multimeter circuit, current transformer circuit, and single phase motor circuit.
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 automatic filter consists of shell, multiple filter element, anti-flush mechanism, electric control box, reducer, electric valve and differential pressure controller. Casing of diaphragm plate inside cavity can be divided into upper and lower two cavity, the cavity is equipped with multiple filter core, so that make full use of the filter space, significantly reduce the filter size, are installed in the inferior vena backwash suction cups.
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