But in any particular system, these models have never been able to achieve a critical mass.

Any particular system can have attributes of more than one category.

Any number of extra terms may be added, depending on the particular system being considered.

These may change with time but they affect the specifications of each particular system.

So, yeah, it sounds like it's something wrong with his particular system.

This rule is also used when writing words without reference to any particular system.

I do not have any particular system, or preferred time of day.

It is an outside frame of reference, a particular system.

So it isn't necessary, for their exploitation, to go to any particular system.

Which pieces of knowledge are relevant to a particular system?