一般词典上只能查到下面两个意思。

regime n. 政治制度，制度，政权，政体（A prevailing social system or pattern，a system of government or a particular administration，a social system or order，the period during which a particular government or ruling system is in power）

另外一个在医学上的用法是：治疗方案或养生法或疗养方案或规则（a systematic plan for therapy (often including diet)）

但Wikipedia上提供了Regime在科学上的含义。Regime在物理学上作为“一组物理条件”或“限制性条件”。

The word regime (also "régime", from the original French pronunciation) refers to a set of conditions, most often of a political nature.

In scientific discussions, a regime is a class of physical conditions, usually parameterised by some specific measures, where a particular physical phenomenon or boundary condition is significant. Very often a regime corresponds to a limiting condition. The region of measurable parameter space that corresponds to a regime is very often loosely defined. Examples include "the superfluid regime", "the steady state regime" or "the femtosecond regime".

In geography and hydrography, "regime" refers to the changing conditions of river beds and other features, such as systems of sandbars.

http://en.wikipedia.org/wiki/Regime