| 摘要 |
A device comprising a flow channel having an inlet for introducing a flow of a first material, an outlet for exiting a flow of a second material; a plunger disposed and slidably movable coaxially within the flow channel; a first cooling device disposed adjacent to and substantially surrounding the flow channel comprising a housing having an internal sealable chamber for containing a first cooling fluid, an inlet having a first seal, and an outlet having a second seal, wherein the first cooling fluid is sealable within the sealable chamber; a second cooling device disposed adjacent to and substantially surrounding the first cooling device comprising a housing having an internal channel for a flow of a second cooling fluid, an inlet in fluid communication with the internal channel, an outlet in fluid communication with the channel, and a device for controlling the flow of second cooling fluid.
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