modulate

v. 调整,转调

A device used to modulate an electromagnetic wave.

调制器用以调制电磁波的装置

Music students learn how to add other parts to add other parts to a given tune, and how to modulate to a related key.

音乐学生学习给一个现有的调子配上其他音部，还要学习怎样转成和声调。