The phrase "a pair of primary" is not complete and lacks context, making it difficult to determine its correctness in written English.
It could be used in contexts discussing items or concepts that come in pairs and are considered primary or fundamental, but additional information is needed for clarity.
Example: "In the design, we need a pair of primary colors to create a vibrant contrast."
Alternatives: "two primary" or "a duo of primary".
We consider a simple time-slotted cooperative transmission model depicted in Figure 1 which consists of a pair of primary users and a number of secondary users.
In this paper, we consider a time-slotted system consisted by a pair of primary transmitter and receiver (PU) and a number of R candidate relays.
We analyze the local delay of cognitive radio ad hoc networks in which secondary nodes are overlaid with a pair of primary nodes.
The primary system includes a pair of primary source and primary destination, while the secondary system includes a secondary source, a secondary destination, and a secondary relay.
Under the constraints of the average transmit power at SU and the average interference temperature to PU, the sensing duration, energy threshold, and power levels are optimized to maximize the average achievable rate at SU. Consider a CR network with a pair of primary and secondary transceivers as depicted in Figure 1.
So, that happened: This week's news has set the stage for a pair of primary debates and new focus on the front-runners in each party.
The mature Drosophila LG is composed of a pair of anterior (primary) lobes, and several small posterior (secondary) lobes, which contain immature pro-haemocytes.
A pair of isogenic primary and metastatic PCa cell lines revealed that nuclear iASPP is enriched in the highly metastatic PCa cells.
The secondary and tertiary colour segments between a pair of parent primaries can then be seen to share a harmonious family relationship with one another the yellow-orange, orange, and orange-red hues that lie between yellow and red, for example.
The sectors that are neutronically and thermally coupled each has a separate pair of primary and secondary loops with thermoelectric (TE) powered electromagnetic pumps, a TE power conversion assembly, and heat-pipes radiator panels.
Each sector has a separate pair of primary loop with energy conversion unit(s) and secondary loop with heat rejection radiator panels.
