| 摘要 |
Improved method and apparatus for distributing a fluid, e.g., a liquid-vapor mixture, through a conduit, e.g., a tube in a direct fired heater, involving at least one reduction means located inside the conduit to abruptly reduce the inside cross-sectional area of the conduit available for flow of the fluid, provided that the inside cross-sectional area of the conduit is substantially the same both before and after the reduction means.
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