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edge clearance

   Also found in: Encyclopedia 0.01 sec.
edge clearance
A small, peripheral gap between the edge of a rigid contact lens and the cornea. It is important as it allows tear exchange and eases lens removal. The absence of edge clearance in rigid contact lenses may lead to superficial corneal damage.
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If the individual designs don't permit the panel to be broken into smaller strips (either due to irregular edge designs or lack of edge clearance for finger conveyors), a pallet can be used for support and/or masking.
Fixturing for selective soldering: pallets are a solution to odd-form ... by Circuits Assembly
They are clearing rubbish, cutting back overgrowth, clearing litter above the council's normal litter-picking operation, improving landscaped areas, tidying small grassed areas - particularly around the base of columns and posts; path edge clearance, repairing and painting damaged or scruffy street furniture and working with voluntary groups and local community groups on community 'clean up' initiatives.
WALES: Team target 'grot spots' by Daily Post (Liverpool, England)
For instance, if you only take one width measurement, and then subtract your hinge and lock edge clearances, you could end up with hinge binding if the frame isn't square and you didn't happen to measure in the narrowest spot.
Retrofitting existing openings: installation tips for hollow metal ... by Smith, Rachel S.; Buckley, Chris; Fisher, Laura; Schandevel, Jeff; Singleton, Kim / Doors and Hardware
 
 
 
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