| 摘要 |
<p>Apparatus and methods for generating and dispensing a mixture containing a pressurized gas and a fluid material. The apparatus includes a mixing device (16) having a mixing chamber (30) and a mixer inside the mixing chamber. A gas injection device (60), which is coupled with the mixing device (16), injects the pressurized gas into the fluid material in the mixing chamber (30). The mixer operates to combine the pressurized gas with the fluid material to form a mixture, which is subsequently dispensed from a dispenser coupled with the mixing device (16).
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