Device that converts radiant energy to another form, e.g. using a laser beam to produce a three-dimensional image.

(向)上变频器；杂频变换器(将幅射能从一种形式变成他种形式的变频器)。

An amplifier that converts input frequency to a greater output frequency.

(向)上变频器；杂频变换器(将幅射能从一种形式变成他种形式的变频器)。