The phrase "agents at which" is correct and usable in written English.
It can be used when referring to specific agents or entities in a context where their role or function is being discussed.
Example: "The researchers identified several agents at which the chemical reactions occurred during the experiment."
Alternatives: "agents through which" or "agents by which".
She read about Working Today and then attended a seminar for free agents at which Ms. Horowitz spoke.
Just days before being appointed president, Putin addressed an annual gathering of secret agents at which he told them (it was his idea of a joke) that an FSB mission to infiltrate the Russian government had been successful.
After you register you'll get e-mails and/or phone calls from several carriers' representatives or agents, at which point you should be sure to ask about discounts and tailoring the policy to your needs.
No one died in the so-called "battle," but about 1,000 militiamen showed up at the Bundy Ranch and aimed guns at about 12 federal agents, at which point BLM surrendered and gave back some of Bundy's cattle.
We plan to update the QBleed score when sufficient data are available to undertake direct comparisons between the older and newer agents, at which point we will be able to decide whether they should be presented as separate or combined variables.
The sides have until midnight Saturday to hash out a deal before Takahashi becomes a free agent, at which point he can negotiate with any of the other 29 teams, but not the Mets.
There is a vague hint that there is something these couples do that produces children which, when humans do it too, seems to involve a walk in the fresh air, a kiss near a haystack, followed by a meeting with an estate agent at which she says: "Then the lino will be laid free?" And her husband says: "And I only have to pay £10?" That was as explicit as a film could be, in our grandparents' day.
The racecourse is advising ticket holders to contact the outlet or agent at which they purchased tickets, to discuss refunds.
Plates were then incubated for 24 h at 37 °C, after which they were observed, the lowest concentration of antimicrobial agent at which there was no visible growth of a microorganism after incubation was taken as MIC (Petar et al. 2016) and MICs were noted.
Results were read after 18 hours at 37°C and the MIC was the lowest concentration of the antibacterial agent at which no growth was detected.
The MIC was the lowest concentration of the antimicrobial agent at which no growth was detected and resistance was defined as previously described [10], [13].
