| 摘要 |
An apparatus for producing fog, said apparatus having ultrasonic circuitry for producing ultrasonic energy for vaporizing a liquid, comprising a receptacle having a recess in the bottom thereof and a surface located at an upper part of said recess for containing said liquid, said recess defining a space devoid of said liquid, wherein said ultrasonic circuitry is located on a bottom of said surface in said recess and positioned such that said ultrasonic energy produced by said ultrasonic circuitry is transferred to said liquid.
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