| 单词 | microwave oven | |||
| 释义 | microwave ovenenUSmicrowave ovenmicrowave ovenmi′crowave ov`enn.
microwave oven→ 微波炉zhCNmicrowave ovenenUSmicrowave oven,device that uses microwavesmicrowave,electromagnetic wave having a frequency range from 1,000 megahertz (MHz) to 300,000 MHz, corresponding to a wavelength range from 300 mm (about 12 in.) to 1 mm (about 0.04 in.). Like light waves, microwaves travel essentially in straight lines. ..... Click the link for more information. to rapidly cook food. The microwaves cause water molecules in the food to vibrate, producing heat, which is distributed through the food by induction. A special electron tubeelectron tube, device consisting of a sealed enclosure in which electrons flow between electrodes separated either by a vacuum (in a vacuum tube) or by an ionized gas at low pressure (in a gas tube). ..... Click the link for more information. called a magnetron produces the microwaves. Typical output power for consumer devices ranges from 650 to 1200 watts. To ensure even heating, the magnetron directs its waves at a rotating metal disk with offset vanes, which scatters the waves through the oven cavity; a rotating platform for the food is sometimes used in addition. Power settings may reduce the amount of radiation by cycling a constant-output magnetron on and off for varying lengths of time, or may reduce the level of radiation constantly produced by an inverter magnetron. The magnetron may be supplemented by quartz and halogen bulbs for browning food, which microwaves do poorly. microwave oven[′mī·krə‚wāv ′əv·ən]microwave ovenenUSmicrowave ovenCAUTION!Food prepared or reheated in a microwave should be tested with a thermometer to make certain it has reached the lethal temperature for potentially hazardous microorganisms.microwave ovenenUS
Synonyms for microwave oven
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microwave oven - kitchen appliance that cooks food by passing an electromagnetic wave through it; heat results from the absorption of energy by the water molecules in the food