The main use for this is to preserve form information across postbacks.

The family seems to be well preserved across species.

The contents of instance variables are not guaranteed to be preserved across method calls.

Antoinette wondered about the memories they stirred, preserved across five or six hundred years of experience.

That relationship was preserved in oral history across the centuries, even as historians of the past generally dismissed the claim.

The common data area comprises data such as the process' environment variables, which are preserved across the system call.

Perhaps he preserved them covertly across the centuries, in preparation, it may be, for the return of white gold to the Land.

Numerous examples have been preserved across the world.

The (still hidden) pinning option is now preserved across logins.

This circuit appeared first in territorial vertebrate animals and is preserved across all mammals.