The phrase "a pair of parallel" is correct and usable in written English.
It can be used when referring to two lines, objects, or concepts that are parallel to each other in a mathematical, physical, or metaphorical context.
Example: "In geometry, a pair of parallel lines never intersect, no matter how far they are extended."
Alternatives: "two parallel" or "a couple of parallel".
Inside the barrel of a railgun are a pair of parallel metal rails and a sliding conductive armature.
Reminiscent of D.W. Griffith's Intolerance (1916), Noah's Ark featured a pair of parallel stories, one recounting the famous biblical flood, the other a World War I-era romance.
They can be distinguished by asking what happens to a pair of parallel beams of light that are fired into space.
"All My Friends" clings to a part that was originally buried: a pair of parallel piano chords pounded in close rhythmic succession, with the kind of overlapping you'd find in a Steve Reich composition.
Consider, he said, an observer with one bit to spend on one of the classic setups of quantum theory: an electron sailing toward a screen in which there is a pair of parallel slits.
The book is structured as a pair of parallel narratives; this has the unfortunate effect of widening the distance between its two subjects, who lived in vastly different worlds and, by all accounts, never met.
Experimental [2] and bioinformatics [1], [3], [4] analyses of TIM barrel proteins have led to the conclusion that a pair of adjacent parallel β-strands and the intervening anti-parallel α-helix, i.e., the βαβ module, serve as the minimal unit of stability.
We do get to see "Blue Lines," of 1916, a tour de force of minimalist watercolor in which a pair of skinny parallel lines imbue the space around them with a trembling energy.
Both of them consist of a supporting structure and a pair of corresponding parallel electrode plates.
Each power electronic switch contains a pair of reverse parallel thyristors, the structural diagram is shown in Fig. 2c.
The inductance of a pair of two parallel plates (electrodes) per unit length (of width w) can be calculated using [8] L = μ d w, (4).
