The phrase "are restrained by a" is correct and usable in written English.
It can be used when discussing limitations or constraints imposed on someone or something.
Example: "The researchers are restrained by a lack of funding, which limits their ability to conduct further experiments."
Alternatives: "are limited by a" or "are constrained by a".
While you're not bound by the pledge of confidentiality your friend presumably made, you are restrained by a more fundamental duty: not to do harm.
A democracy like ours may at times have abusive officials, but they are restrained by a constitutional system, if we choose to maintain it.
The influence of microslip on the resonant response of structures that are restrained by a friction contact is discussed.
Riders are seated in the open carriage and are restrained by a lap bar.
Riders are restrained by a lapbar and the seats are elevated so riders' feet don't touch the ground.
Riders are restrained by a single T-shaped lap bar There are three trains total, each train featuring a different fin color: green, red, or brown.
Riders are restrained by an over the shoulder restraint and a lap bar.
"Are you happy!? Are you happy what you did to a family?!" Caroline screams as Kim D. is restrained by a gaggle of elderly witches she raised from the dead.
Sodium and chloride ions were then added to the systems to a concentration of 150 mM followed by a restrained MD run whereby all heavy atoms were restrained by a harmonic potential of 2.39 kcal mol 1 Å–2 for 200 ps.
In the first equilibration phase, which ran for 50 ps, all protein and ligand atoms were restrained by a 20 kcal/mol/Å harmonic potential; the second equilibration step restrained protein backbone atoms only and the nucleotide ribose rings (50 ps); and the final step removed all harmonic constraints and was run for 600 ps.
Coach John Brady, but was restrained by a policeman.
