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RDH
abbr.
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abbr.
Recirculating Document Handler
;
Registered Dental Hygienist
;
round head
abbr., auto.
removable dome head
abbr., avia.
reference datum height
;
roundhead
abbr., el.
remote device handler
abbr., O&G, sakh.
radially drilled hole
abbr., oil
retrievable dual hydraulic-set
(packer)
;
rotary drilling hydraulics
tech.
radioactive drain header
rdh
abbr.
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UK
roadhead
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