The phrase "acted as a single" is correct and usable in written English.
It can be used to describe a situation where multiple entities or individuals function together as one unit or entity.
Example: "During the presentation, the team acted as a single unit, delivering their message seamlessly."
Alternatives: "functioned as one" or "operated as a whole".
That amount, which was subsequently readjusted to €125,000 plus interest and costs, has been due since August 2012 with Fifa's players status committee – for whom the former chairman of the FA and vice-president of Uefa and Fifa, Geoff Thompson, acted as a single judge – having ruled a year ago that Genoa should make the payment within 30 days.
The dryer bed, with 2 m2 surface area, acted as a single glazed solar collector was also tilted 45° towards the south.
The test results of the present experimental programme showed that each of the strengthened beams acted as a single unit and failed in a flexural ductile manner.
Traditional Maidu social organization was built around autonomous, yet allied, settlements; each claimed a communal territory and acted as a single political unit.
They also acted as corporations: their members held land in common, acted as a single unit with regard to substantive property, and behaved as one "person" in relation to other similarly constituted groups in legal and political matters such as warfare, feuds, and litigation.
This DNA device, thus, acted as a single electron transistor [72].
The reason might be that a thin layer of fine sand acted as rollers for the rolling of the gravel, leading to the reduction of effective friction resistance during the movement; the interactions between particles became more complicated than they just acted as a single-row roller to lubricate the gravel when excessive amount of fine sand was involved.
This system consists of a buoy attached to a rod and hydraulic cylinder, which acts as a single or double acting reciprocating piston pump.
Clusters and grids are systems which intercommunicate among them and act as a single resource.
The tip acts as a single asperity abrading the counter surface during the contact sliding motion.
However, we note that the AR does not necessarily act as a single folding element.
