Giving out or distributing through a container in convenient units.

preparing and distributing

Application of adhesives by pressurized (hydraulic or pneumatic) force for a specific period required to emit an ‘appropriate’ amount of material through the needle and onto the target location.

The selection, fitting and adjusting of ophthalmic frames, mountings and lenses.

To create a specific volume of liquid by pulsing a pump one or more times, until the total volume of liquid required has been pumped.