时间：2011-03-11 23:13来源：蓝天飞行翻译 作者：admin 点击：次
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A portion of an instrument departure clearance, to provide a pilot with an altitude to be used in the event of two-way radio communication failure. “Expect departure clearance (time)” (air traffic control). The time an operator can expect a gate release. This is used in the Fuel Advisory Departure (FAD) program. “Expect further clearance (time)” (air traffic control). The time a pilot can expect to receive clearance beyond a clearance limit. “Expect further clearances via (airways, routes, or fixes)” (air traffic control). This phrase is used by air traffic controllers to inform a pilot of the routing he may expect if any part of the route beyond a short range clearance limit differs from that filed. “Expedite” (air traffic control). A warning used by air traffic controllers when prompt compliance is required in order to avoid the development of an imminent situation. expendable parts (maintenance supply). Fast-moving consumable items, usually with a unit cost of $50.00 or less. Expendable parts include nuts, bolts, gaskets, abrasives, and glues. expendable weight (aircraft operation). The part of an aircraft load that is used in flight. The fuel carried in an aircraft is an expendable weight. It is used up as the flight progresses. experimental license (aircraft certification). A license issued by the Federal Aviation Administration that allows an aircraft to be flown for the purpose of proving its design and construction in order to qualify for a regular license. The FAA puts certain restrictions on experimental aircraft. These restrictions apply to the crew allowed to fly in the aircraft and where it can be flown. explode. To make a violent change in the chemical composition of a material. Usually an explosion is accompanied by a loud noise and the release of light and heat. When a mixture of gasoline fumes and air in a closed container is ignited, it explodes. In the explosion, the gasoline and air change into carbon dioxide and water and produce a loud noise, light, and heat. exploded-view drawing. A drawing showing all of the parts spread out to show their relative location in the component. explosion-proof motor (electric motor). An electric motor totally enclosed in a housing. Explosive gases cannot get into the housing to explode, and sparks produced inside the housing cannot ignite gases on the outside. explosion-proof switch (electrical component). A special electrical switch enclosed in a housing that prevents the sparks which occur when the contacts separate from igniting any explosive gases that may be on the outside of the housing. explosive atmosphere. Atmosphere (air) which holds explosive vapors or certain types of powder that can be ignited. Dust and particles of powdered metal are easily ignited, and atmosphere which contains these contaminants can become dangerously explosive. explosive bolt. A special bolt with an explosive charge built into it. This is a remotely operated charge that causes the bolt to fail and release its hold. Explosive bolts are used to allow stages of rockets to separate, and to release droppable fuel tanks from an airplane. |
