English-Chinese/Microwave

Microwave is a kind of high frequency radio wave. They are broadly defined as having a wavelength between 1 mm and 1 m, or narrowly defined as a wavelength between 3 mm and 300 mm. Microwaves have many uses, including radar, radio astronomy, and heating food in microwave ovens. Unlike longer radio waves, they do not turn around land obstacles and can only move straight. However, they are still used for communication because they can have high bandwidth. Almost all spacecraft communicate via microwave radio.

微波是一种高频无线电波. 它们被广义地定义为具有1mm至1m之间的波长，或者狭义地定义为3mm至300mm之间的波长. 微波有许多用途，包括雷达，射电天文学和微波炉加热食物. 与较长的无线电波不同，它们不会绕过陆地障碍物，只能直线移动. 但是，它们仍然用于通信，因为它们可以具有高带宽. 几乎所有航天器都通过微波无线电进行通信.