#engine

• Airplane — An aircraft heavier than air, equipped with fixed wings that generate aerodynamic lift and propelled by one or more piston, turbojet, or turboprop engines. This means of air transport is destined for the rapid displacement of passengers, cargo, or the execution of special military and civil missions within the lower layers of the Earth's atmosphere.
• Avional — A high-strength structural aluminum alloy, having copper, magnesium, and manganese as its main alloying elements, widely used in the aeronautical and aerospace industries. This metallic material is characterized by a low density, excellent mechanical properties similar to mild steel after hardening heat treatment, and optimal resistance to structural fatigue, making it ideal for airplane fuselages and components.
• Avionics — The ensemble of electrical and electronic systems used aboard aircraft, satellites, and spacecraft to perform flight control, navigation, communications, performance monitoring, and weapon systems management. This complex technical discipline encompasses radars, autopilot systems, flight computers, digital cockpit displays (glass cockpit), and telemetric sensors ensuring operational safety.
• Aerial duster — A specialized apparatus, device, or utility aircraft structurally configured for the aerial scattering of pesticides, insecticides, or fertilizers in the form of powder or fine dust over agricultural crops or forestry massifs. This technical system optimizes plant protection by uniformly dispersing solid chemical substances over large areas in a considerably reduced time.
• Aerial sprayer — A specialized apparatus, complex mechanical installation, or utility aircraft structurally configured for the application, dispersion, and fine spraying of liquid chemical substances (insecticides, fungicides, herbicides, or foliar fertilizers) over agricultural crops or forestry zones. This technical system uses a spray boom with calibrated nozzles mounted under the wings to ensure uniform and rapid coverage of the ground or vegetation.
• Aviso — A small or medium-sized military warship, characterized by high speed and enhanced maneuverability, used in the past primarily for transmitting orders, reconnaissance, escort, liaison, or coastal patrolling missions. In modern fleets, its structural role has been taken over by corvettes or light frigates, but the term continues to designate fast vessels destined for maritime surveillance.
• Brightening — The act of brightening and its result; a technological process through which the brightness of a surface, the clarity of a transparent medium, or the vividness of a color is intensified. In metallurgy and precision glass industry, brightening represents the final microscopic finishing operation that eliminates residual micro-roughness, ensuring optimal reflective performance according to quality standards.
• Mechanical adjustment — An archaic, regional, or old industrial jargon technical term designating a mechanical operation of fine adjustment, calibration, matching, or microscopic polishing of metallic parts within a structural assembly to ensure optimal sealing or functioning without parasitic friction.
• Precision matching — The act of performing an avizaja; an archaic or regional technical and mechanical process of fine adjustment, microscopic calibration, and precision polishing of metallic components within an industrial assembly. This structural operation aims to reduce parasitic mechanical clearances and optimize contact surfaces to guarantee a perfect seal or smooth sliding of moving parts.
• Aviso — A small or medium-sized military warship, characterized by high speed and enhanced maneuverability, used in the past primarily for transmitting orders, reconnaissance, escort, liaison, or coastal patrolling missions. In modern fleets, its structural role has been taken over by corvettes or light frigates, but the term continues to designate fast vessels destined for maritime surveillance.
• Avometer — A portable measuring instrument, analog or digital, utilized in electrical engineering and electronics to determine the numerical values of the main electrical quantities within a structural circuit. Its name is an acronym formed from the fundamental measurement units it records: Amperes (current intensity), Volts (electrical voltage), and Ohms (electrical resistance); multimeter.
• Focusing — The act of focusing or aligning and its result; a structural process through which an activity, a speech, a strategy, or a technical system is oriented, centered, and concentrated on a main objective, a central theme, or a reference axis. In engineering, it defines the precise geometric alignment of parts or machine elements along the same axis of rotation to ensure the optimal functioning of the mechanism.
• Axiometru — An apparatus, technical device, or mechanical or electronic indicator mounted on a ship's bridge, used to continuously and precisely indicate the tilt angle or exact position of the rudder blade relative to the vessel's longitudinal axis. This structural precision instrument is essential for ensuring navigation control, allowing the helmsman to execute delicate steering maneuvers and maintain a stable course.
• Axograph — An apparatus, measuring instrument, or technical recording device utilized in mechanics and industrial design to graphically trace, measure, and precisely monitor the oscillations, geometric deviations, or angular movements of a rotating shaft during machinery operation. This structural precision instrument transforms parasitic mechanical vibrations into clear diagrams, allowing engineers to execute delicate calibrations and prevent the degradation of complex gears.
• Axometry — An experimental method, technical procedure, or applied discipline in metrology and optics dealing with the rigorous measurement of geometric axes, focal distances, or the structural alignment of components within a complex optical assembly. This precision technique allows engineers to accurately determine the spatial orientation of lenses and correct parasitic centering errors, ensuring superior structural performance of analytical devices.
• Axonometric — Pertaining to axonometry, regarding axonometry, or performed via axonometric projection. In technical drawing and architecture, it describes a method of three-dimensional graphical representation of an object on a single plane, keeping the geometric proportions unchanged along the three spatial coordinate axes, providing a clear and easy-to-understand structural visualization.
• Asbestos textolite — A laminated composite material for technical insulation, manufactured by hot-pressing multiple layers of asbestos fiber fabric impregnated with thermosetting (phenolic or epoxy) resins. This industrial product is characterized by outstanding structural resistance to high temperatures, mechanical friction, and electrical shocks, having been used in the past for manufacturing friction gaskets, pump blades, or electrotechnical insulations, though its modern use is severely restricted or banned due to asbestos toxicity.
• Azeotrope — A liquid mixture consisting of two or more chemical components that boils at a constant and fixed temperature, maintaining its identical structural composition in both the liquid and vapor phases. Because the generated vapors have exactly the same proportions of substances as the liquid from which they originate, an azeotrope cannot be separated or purified by simple fractional distillation, behaving thermodynamically like a single pure compound and requiring special separation methods, such as extractive azeotropic distillation.
• Azeotropic — Pertaining to azeotropy, regarding an azeotrope, or presenting the characteristics of a constant boiling mixture. In industrial design and thermodynamics, it describes processes, phase equilibrium phenomena, or separation methods (such as azeotropic distillation) utilized to manipulate or purify complex liquid systems whose components boil without changing their structural composition.
• AZP — A technical acronym used to designate various structural concepts depending on the field, such as 'Low-Noise Power Supply' in electronics, 'Primary Flight Instrumentation' in aviation, or specific biochemical indicators in medical laboratories.