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فتحة n
comp., MS	slot (The location in a library or media changer which is assigned to a certain media (tape or disc))
O&G. tech.	orifice
oil	hatch; door; span
فتحة buried via n
comp., MS	buried via (A copper plated hole that interconnects one or more internal layers, but does not connect to an external layer, hence the hole is completely internal or buried within the board)
فتحة blind via n
comp., MS	blind via (A copper-plated hole in a printed circuit board that does not extend all the way thru a PCB. This prevents probing a component's signal pin by removing access to the via on the opposite side of the board)
فتحة PCI n
comp., MS	PCI expansion slot (A connection socket for a peripheral designed for the Peripheral Component Interconnect (PCI) local bus on a computer motherboard)
فُتحة n
entomol.	break
فتحة تصريف n
hydrol.	mouth; outlet; opening of a river
فُتْحَة n
med.	aperture; opening
فتحة لهوائى n
antenn.	aperture of an antenna; radiating aperture of an antenna

فتحة : 92 phrases in 21 subjects

Acridology	7
Agriculture	4
Antennas and waveguides	8
Aviation	1
Biology	1
Entomology	1
Ichthyology	1
Lighting other than cinema	2
Medical	24
Microsoft	3
Oceanography & oceanology	1
Oil / petroleum	8
Oil and gas technology	2
Radio	2
Remote sensing	2
Sound recording	2
Technology	2
Telegraphy	1
Thermal Energy	5
Veterinary medicine	3
Water resources	12