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Kết quả tìm kiếm cho “Air quality measurement” Tìm theo Từ (131) | Cụm từ | Cộng đồng hỏi đáp

Tìm theo Từ (131 Kết quả)

Air force

  • the u.s. department consisting of practically all military aviation forces, established july 26, 1947., ( lowercase ) a similar department in any military organization., ( lowercase ) (formerly) the largest unit in the u.s. army air forces., ( lowercase...

Air hammer

  • a pneumatic hammer, usually portable., a hammer driven by compressed air

Air hole

  • an opening to admit or discharge air., a natural opening in the frozen surface of a river or pond., air pocket.

Air pocket

  • (not in technical use) a nearly vertical air current that can cause an aircraft to experience a sudden change in altitude, usually a decrease.
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Air pump

  • an apparatus for drawing in, compressing, or exhausting air., ( initial capital letters ) astronomy . the constellation antlia., noun, bicycle pump , vacuum pump

Air speed

  • the forward speed of an aircraft relative to the air through which it moves.

Air tight

  • preventing the entrance or escape of air or gas., having no weak points or openings of which an opponent may take advantage, an airtight contract .

Open-air

  • existing in, taking place in, or characteristic of the open air; outdoor, adjective, the orchestra gave three open -air concerts last summer ., al-fresco , alfresco , outdoor , outside , spacious

Air-cooled

  • machinery . to remove the heat of combustion, friction, etc., from (a machine, engine, or device), as by air streams flowing over an engine jacket., to cool by means of air conditioning.

Air cell

  • anatomy, zoology, botany . a cavity or receptacle containing air., electricity . a cell in which the positive electrode is depolarized by the oxygen in the air.

Air chamber

  • a chamber containing air, as in a pump, lifeboat, or organic body., also called air cushion. a compartment of a hydraulic system containing air that by its elasticity equalizes the pressure and flow of liquid within the system.

Air conditioner

  • an air-conditioning device.

Air conditioning

  • a system or process for controlling the temperature, humidity, and sometimes the purity of the air in an interior, as of an office, theater, laboratory, or house, esp. one capable of cooling., an air-conditioning system or unit., noun, ac , c/a , central...

Air jacket

  • an envelope of enclosed air around part of a machine, as for checking the transmission of heat., british . life jacket.

Air line

  • straight; direct; traveling a direct route, some railroads advertise air -line routes between stations .

Air power

  • the total military capability of a nation for operations involving the use of aircraft and missiles., noun, aviation , aviation strength

Air raid

  • a raid by aircraft, esp. for bombing a particular area., noun, air assault , air attack , air campaign , air strike , bombing mission , bombing raid , bombing run , fire raid , saturation raid , shuttle raid , strafing

Air rifle

  • an air gun with rifled bore.

Air-conditioning

  • a system or process for controlling the temperature, humidity, and sometimes the purity of the air in an interior, as of an office, theater, laboratory, or house, esp. one capable of cooling., an air-conditioning system or unit.

Air-hardening

  • noting any metal, esp. alloy steel, that can be hardened from above its transformation point by cooling in air.
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