9. shot (n.) a consecutive series of pictures that constitutes a unit of action in a film
The vacuum level is determined by the pressure differential between the evacuated volume and the surrounding atmosphere. Several units of measure can be used. Most refer to the height of a column of mercury â usually inches of mercury (in.-Hg) or millimeters of mercury (mm-Hg).
A reliable source of steam and. cooling water must be available, and provisions must. be made to carry out condensate removal under vacuum. Finally, the appropriate monitoring and control instrumentation must be. specified.