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$28422HEALTHWAY 8-10坪 專業級小型DFS空氣淨化機 10600購物中心- $52864HEALTHWAY 20坪 專業級豪華型DFS空氣淨化機 20600購物中心
- $54903M 淨呼吸 FA-V500空氣清淨機專用濾網 2入組購物中心
- $988HANLIN 濾網式負離子空氣清淨機購物中心
![HITACHI日立13.5坪日本製原裝空氣清淨機 UDP-PF90J]( "HITACHI日立13.5坪日本製原裝空氣清淨機 UDP-PF90J")
$12900HITACHI日立13.5坪日本製原裝空氣清淨機 UDP-PF90J購物中心![DAIKIN大金 12.5坪 保濕空氣清淨機 MCK55USCT]( "DAIKIN大金 12.5坪 保濕空氣清淨機 MCK55USCT")
$17800DAIKIN大金 12.5坪 保濕空氣清淨機 MCK55USCT購物中心![SHARP 夏普 6坪 自動除菌離子空氣清淨機 FU-H30T-W-]( "SHARP 夏普 6坪 自動除菌離子空氣清淨機 FU-H30T-W-")
$3390SHARP 夏普 6坪 自動除菌離子空氣清淨機 FU-H30T-W-購物中心![InfoThink 隨身項鍊負離子空氣清淨機 史迪奇]( "InfoThink 隨身項鍊負離子空氣清淨機 史迪奇")
$3680InfoThink 隨身項鍊負離子空氣清淨機 史迪奇購物中心![防疫大作戰-InfoThink 授權系列隨身負離子空氣清淨機（五款任選一入）]( "防疫大作戰-InfoThink 授權系列隨身負離子空氣清淨機（五款任選一入）")
$3680防疫大作戰-InfoThink 授權系列隨身負離子空氣清淨機（五款任選一入）購物中心![美國AirTamer個人隨身負離子空氣清淨機A310S-兩色可選]( "美國AirTamer個人隨身負離子空氣清淨機A310S-兩色可選")
$4990美國AirTamer個人隨身負離子空氣清淨機A310S-兩色可選購物中心![SHARP夏普19坪空氣清淨機FP-J80T-W]( "SHARP夏普19坪空氣清淨機FP-J80T-W")
$14500$16111SHARP夏普19坪空氣清淨機FP-J80T-W購物中心![大金9.5坪空氣清淨機MC40USCT]( "大金9.5坪空氣清淨機MC40USCT")
$6390$7100大金9.5坪空氣清淨機MC40USCT購物中心
An air purifier or air cleaner is a device which removes contaminants from the air in a room to improve indoor air quality. These devices are commonly marketed as being beneficial to allergy sufferers and asthmatics, and at reducing or eliminating second-hand tobacco smoke .
Blue light is scattered more than other wavelengths by the gases in the atmosphere, surrounding Earth in a visibly blue layer at the stratosphere, above the clouds of the troposphere, when seen from space on board the ISS at an altitude of 335 km (208 mi) (the Moon is visible as a crescent in the far background).[1] The atmosphere of Earth is ...
The standard atmosphere (symbol: atm) is a unit of pressure defined as 101,325 Pa (1,013.25 hPa ), which is equivalent to 1,013.25 millibars, [1] 760 mm Hg, 29.9212 inches Hg, or 14.696 psi. [2] The atm unit is roughly equivalent to the mean sea-level atmospheric pressure on Earth; that is, the Earth's atmospheric pressure at sea level is ...
The speed of sound is the distance travelled per unit of time by a sound wave as it propagates through an elastic medium. At 20 °C (68 °F), the speed of sound in air is about 343 m/s (1,125 ft/s; 1,235 km/h; 767 mph; 667 kn ), or one km in 2.91 s or one mile in 4.69 s. It depends strongly on temperature as well as the medium through which a ...
The Eurofighter Typhoon is a European multinational twin-engine, supersonic, canard delta wing, multirole fighter. [3] [4] The Typhoon was designed originally as an air-superiority fighter [5] and is manufactured by a consortium of Airbus, BAE Systems and Leonardo that conducts the majority of the project through a joint holding company ...
An airplane ( American English) or aeroplane ( Commonwealth English ), informally plane, is a fixed-wing aircraft that is propelled forward by thrust from a jet engine, propeller, or rocket engine. Airplanes come in a variety of sizes, shapes, and wing configurations. The broad spectrum of uses for airplanes includes recreation, transportation ...
United States Air Force. Produced. 1972–1984 [1] Number built. 716 [2] The Fairchild Republic A-10 Thunderbolt II is a single-seat, twin - turbofan, straight-wing, subsonic attack aircraft developed by Fairchild Republic for the United States Air Force (USAF). In service since 1977, it is named after the Republic P-47 Thunderbolt, but is ...
