Temporary mounts are usually made in aqueous solution, that is, in water or buffer. They aren't meant to be kept for more than a few hours, since tissue degradation can set in soon. Permanent mounts, on the other hand, usually involve resin to seal them onto the slide and make them waterproof. Since it can't come in contact with external elements that can degrade it, permanent mounts last longer, and can be visualized even after months, or years, depending on the mountant used.
Time that it is expected to work.
Temporary and permanent are antonyms. Temporary means for a short period of time and permanent means for a long time/forever.
permanent is where you stay somewhere temporary is you stay there for a little while
Temporary
temporary
Temporary
permanent
Permanent
permanent
permanent
A temporary issue is an issue that is not permanent.
it is permanent
The houses were permanent.