abbr.	OFGAS	Office of Gas
		abbr. energ.syst.	OFT	Office of Fair Trade
		abbr.	OFTEL	Office Of Telecommunications Regulation
		goldmin.	ore chute	inclined mining excavation for transporting ore
		goldmin.	ore pass	inclined mining excavation for transporting ore
		goldmin.	orepass	inclined mining excavation for transporting ore
		abbr. O&G	P&A	plug and abandon a well
		abbr. O&G	PAO	polyalphaolefin
		abbr. O&G	PB	plug back
		abbr. dril.	PBR	Polish bore receptacle
		abbr. energ.syst.	PBR	performance-based regulation
		abbr. O&G	PCT	Pressure Control Tester
		abbr. O&G	PERI	Public Environment Reporting Initiative
		abbr. O&G	PES	potential earthquake source
		abbr. energ.syst.	PES	Public Electricity Supplier
		abbr. gynecol.	PF	peritoneal fluid
		abbr. O&G	PID	P&I diagram
		abbr. energ.syst.	PJM	Pennsylvania-New Jersey-Maryland
		abbr. dril.	PL	pressure loss
		abbr. O&G	PLM	platform layout modeling
		abbr. construct.	PMT	pressure meter test
		abbr. O&G	PP	pour point
		goldmin.	ppb	parts-per-billion
		goldmin.	ppb	parts-per-billion-level
		goldmin.	ppb	ppb level
		abbr. O&G	PPF	primary processing facility
		abbr. energ.syst.	PPP	pool purchase price
		abbr. O&G	PPR	project for implementation of construction operations
		abbr. energ.syst.	PSA	Pooling and Settlement Agreement
		abbr. O&G	PSO	public supply obligation
		abbr. energ.syst.	PSP	pool selling price
		abbr. energ.syst.	PTR	physical transmission rights
		abbr. O&G	PWA	preliminary water allocation
		abbr. dril.	PWD	pressure while drilling
		abbr. energ.syst.	PX	power exchanger
		abbr. energ.syst.	QF	qualified facility
		abbr. energ.syst.	R.O.W.	right-of-way
		abbr. energ.syst.	RAA	Reliability Assurance Agreement
		abbr. goldmin.	RAB	Rotary Air Blast (sometimes Rapid Advance Bore)
		goldmin.	RAB drill	Rotary Air Blast
		goldmin.	RAB drilling	Rotary Air Blast
		abbr. energ.syst.	RATC	recallable available transfer capability
		abbr.	RC drilling	reverse circulation drilling
		abbr. energ.syst.	RCR	real capacity remuneration
		abbr.	RECs	regional electricity companies
		abbr. energ.syst.	RMR	reliability-must-run
		abbr.	ROM grade	run-of-mine grade
		abbr. energ.syst.	RPI-X	regulatory method based upon price caps and periodic reviews
		O&G	RS ChS	Russian System of Prevention and Response to ES
		O&G	RSChS	Russian System of Prevention and Response to ES
		abbr.	SAG mill	semi-autogenous mill
		abbr.	SHRIMP mass spectrometer	sensitive high resolution ion microprobe mass spectrometer
		abbr. O&G	SI	Shell International
		abbr. gynecol.	SIH	supracervical intrafascial hysterectomy
		abbr. construct.	SLS	service limit state
		abbr. construct.	SMW	diaphragm wall
		abbr. construct.	SMW	slurry wall
		abbr. construct.	SMW	soil mix wall
		abbr. construct.	SMW	soil mix wall method
		abbr. construct.	SMW	wall in trench
		abbr. dent.impl.	SP	Standard Plus
		abbr. O&G	SP	self-potential curve
		abbr. energ.syst.	SRE	supplemental reserve evaluation
		abbr. energ.ind.	SSLF	steady state load flow
		abbr. dril.	STC	short-threaded connection
		abbr. gynecol.	SUI	stress urinary incontinence
		abbr. O&G	SWD	seismic while drilling
		abbr. O&G	SWOB	surface weight on bit
		abbr. energ.syst.	T&D	transmission and distribution network
		abbr. construct.	TBM	tunnel boring machine
		abbr. energ.syst.	TCC	total transfer capacity
		abbr. energ.syst.	TCC	transmission congestion contract
		abbr.	TCCs	transmission congestion charges
		abbr. energ.syst.	TCR	theoretical capacity remuneration
		abbr. dril.	TDA	torque/drag analysis
		abbr. energ.syst.	TDN	transmission and distribution network
		abbr. energ.syst.	TESIS	Trans-European Synchronously Interconnected Electric Power System
		abbr. dril.	TIN	trip in hole
		abbr. dril.	TJ	tool joint
		abbr. gynecol.	TLH	total laparoscopic hysterectomy
		abbr. energ.syst.	TMNSR	ten-minute non-spinning reserve
		abbr.	TMOR	thirty-minute replacement reserve
		abbr. energ.syst.	TMSR	ten-minute spinning reserve
		abbr. energ.syst.	TOA	Transmission Operation Agreement
		abbr. dril.	TON	trip out hole
		abbr. energ.syst.	TP	transmission provider
		gynecol.	Tren	Trendelenburg position
		abbr. energ.ind.	TRM	transmission reliability margin
		abbr. energ.syst.	TUOS	transmission use of system charges
		abbr.	UCPTE	International Union of Producers and Distributors of Electrical Energy
		abbr. construct.	UCS	unconfined compressive strength
		abbr. energ.ind.	UCTE	Union for the Coordination of Transmission of Electricity
		energ.syst.	UK DCS	UK Data Collection Service
		abbr. dril.	UM	upper margin
		abbr.	UPS/IPS	Unified Power System / Interconnected Power System
		abbr. gynecol.	VH	vaginal hysterectomy
		abbr. dril.	VME	von Mises equivalent
		abbr.	WAD cyanide	weak acidic dissociating cyanide
		abbr. O&G	WDM	waste drilling mud
		goldmin.	wet assay	determination of the quantity of a desired constituent in ores, metallurgical residues, and alloys by the use of processes of solution, flotation, or other liquid means

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