因为微波波长比广播的波长要长，它会被各种物体吸收，特别是水——比如微波炉的使用原理。
Because they have a longer wave length than radio waves, microwaves can be absorbed by tissues, especially watery tissues, -hence their use in the kitchen.
广播1台已经用这个波长广播多年了。
而调幅广播站发出的电波长达几百米。
An AM station is putting out radio waves that are hundreds of times as long!
而调幅广播站发出的电波长达几百米。
An AM station is putting out radio waves that are hundreds of times as long!
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