The phrase "acts as a single" is correct and usable in written English.
It can be used to describe something that functions or operates collectively as one unit or entity.
Example: "In this experiment, the team acts as a single unit to achieve their common goal."
Alternatives: "functions as one" or "operates as a whole".
This system consists of a buoy attached to a rod and hydraulic cylinder, which acts as a single or double acting reciprocating piston pump.
The sneeze acts as a single frame in the stop-motion animation movie of his life, capturing moments that would otherwise be lost for ever.
The new deal will mean that the government acts as a single customer, with all departments buying software at the same rate.
That is few enough for them to behave as "quantum dots", in which a crystal acts as a single unit, giving it different electronic properties from normal silicon.
The scheme, which is part of the SNP government's flagship getting it right for every child framework, provides children with access to a named person such as a health worker or teacher who acts as a single point of contact.
OneLogin acts as a single sign-on access point for all of your enterprise cloud applications.
A Swedish entrepreneur is trying to market and sell a biodegradable plastic bag that acts as a single-use toilet for urban slums in the developing world.
For example, the Turkish elite fears that the new "Muslim middle class" (the economically successful groups from Anatolia who support the AK) is not heterogeneous but merely acts as a single-minded Trojan horse for Islam.
It consists of a photodiode covered by a re-crystallized silicon film, which acts as a single-film optical filter.
However, a battery of tests confirm that Mpi acts as a single-copy nuclear, coding marker which can be mapped readily in crosses (see methods).
The software, which costs up to $6,000 per salesman, lets squadrons of them act as a single efficient entity, constantly accessing, analyzing and acting on a centralized collection of detailed information about customers and competitors.
