In the space outside the earth's atmosphere, various types of aircraft that basically operate according to the laws of celestial mechanics, also known as spacecraft. The spacec
Jun 07, 2022
Gravitational potential energy is the energy an object possesses due to gravity. The gravitational potential energy of an object at a point in space is equal to the work done by gr
Urea-formaldehyde resin is a polycondensation of urea and formaldehyde under the action of a catalyst (alkaline or acid catalyst) to form an initial urea-formaldehyde resin, and th
Jun 06, 2022
Adhesive is a substance with very good adhesive properties. It acts to connect objects by surface bonding by adhesion and cohesion.
Nitrocellulose is an organic polymer compound with the chemical formula (C6H7N3O11)n. It is the product of the esterification reaction of cellulose and nitric acid. It is white or
Jun 02, 2022
Ammonium perchlorate is an inorganic compound with the chemical formula NH4ClO4, which is a white crystalline powder with deliquescence. Ammonium perchlorate is a strong oxidant an
A fluid is a flowing substance, an object that is continuously deformed by any slight shearing force. Fluid is a general term for liquids and gases. It is easy to flow, compressibl
May 30, 2022
Magnetic fluid beneficiation is a new beneficiation method that separates different minerals according to the difference in magnetism and density or the difference in magnetism, co
The ignition system composed of non-contact circuit breakers composed of electromagnetic, infrared or Hall components is called non-contact igniter, and its amplification circuit i
May 29, 2022
The ignition system controlled by the Electronic Control Unit is determined by the microprocessor in the ECU according to the signal of the crankshaft angle sensor, so it has no ci
The ignition system is an important part of the gasoline engine, and the performance of the ignition system has a great influence on the power, fuel consumption and exhaust polluti
May 28, 2022
The disk-shaped part with a high moment of inertia of the flying wheel acts as an energy store. For a four-stroke engine, work is done once every four piston strokes, that is, only
