"比浓对数粘度" can be translated into English as "inherent viscosity" or "reduced viscosity" in the field of polymer science or chemistry.
Inherent viscosity is a commonly used term that reflects the viscosity characteristics of a polymer solution per unit concentration, calculated based on the natural logarithm of the relative viscosity.
Reduced viscosity is another term with a similar meaning, often used interchangeably in certain contexts, though it might have slightly different nuances depending on the specific field or application.
In most cases, especially in polymer chemistry and materials science, "inherent viscosity" is the more widely recognized and used term for "比浓对数粘度".