The phrase "as a trough" is correct and usable in written English.
It can be used in contexts where you are making a comparison or analogy, often relating to a low point or a receptacle for holding something.
Example: "The economy has been fluctuating, and we are currently experiencing a downturn, as a trough in the market cycle."
Alternatives: "like a trough" or "similar to a trough."
Thanks to the expenses scandal, popular wisdom casts the Palace of Westminster as a trough and its inhabitants as venal, grasping pigs.
This temporary cooling, which is typically in early to mid-April in the Northeast, regularly shows up as a trough in the graphs that track the daily high temperature trends.
In rebuttal, Craig S. Morford, an assistant United States attorney, urged the jury to ignore Mr. Traficant's "convoluted conspiracy theories" as a contrived distraction and to concentrate on the evidence and witnesses the government presented to prove that the congressman, a Democrat from Youngstown, used his office as a "trough" for enrichment.
Mr. James's lead lawyer, Thomas Ashley, said he intended to appeal the verdict, which a jury had wrestled with since April 9. From City Hall to the city streets, the conviction of Mr. James disappointed some, vindicated others, and left some observers hopeful that it could end this city's reputation as a trough for opportunistic public officials.
In such a case some wavelets will reach the image as a peak, some as a trough, and there will be much destructive interference leading to the formation of a sizable patch of light, much different from the minute Airy disk characteristic of a perfectly corrected lens.
The appropriate concentration was defined as a trough of at least 4 times the minimal inhibitory concentration (clinical breakpoint of EUCAST).
and Allen West (R-Fla)., while Yoho attacked career politicians as pigs feeding at a trough.
Chronically bitten pigs have been reported to be reluctant to spend time at a trough feeder, as this exposes the tail [ 10].
These transient increases in local gamma synchronization displayed a frontocentral scalp distribution (Figure 3a) and recurred at a rate consistent with a theta cycle, as well as displaying a trough at about 400 ms prior to button presses (Figure 3b).
They label every MP as a "trougher" just as they used to claim that we only worked four days a week.
The large low to the northeast of The Bahamas gradually opened into a broad trough as a shortwave trough approached from the northwest.
