| 摘要 |
A heat exchanger has a body with an inside surface and an outside surface forming a hole along a predetermined length of the body, wherein the inside surface is of a predetermined size. Additionally, the heat exchanger has an inlet at one end of the predetermined length and an outlet at another end of the predetermined length. The inlet and outlet disposed on the body facilitate flow of material in and out of the body. In one embodiment, included in the body is a rod, having a number of grooves, being substantially similar in size to the inside surface, inserted into the hole along the predetermined length to provide a long travel path of the material through the body. The predetermined length is of a length sufficiently long to cause the material to exit with a stable temperature that is insensitive to a small variant of the length.
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