The phrase "agents by which" is correct and usable in written English.
It can be used to refer to the means or methods through which something occurs or is accomplished.
Example: "The researchers identified several agents by which the disease spreads in the population."
Alternatives: "factors through which" or "means by which".
The reformed army and administration became the agents by which the sultan extended his authority over the semi-independent governors, local notables, valley lords, and other groups that had wielded political power in various parts of the empire.
Function Coordinator has an interface with Function Agents by which it can configure the Base-Band Elements (BBEs) and core network elements (CNEs) based on the service requirements, also known as service orchestration, and forms the service chain.
Experimental data indicate that deficiencies in hMLH1 result in 'replicative bypass' following exposure to cytotoxic agents, by which DNA damage is not recognised and tumour cells continue to divide (Brown et al, 1997).
In every case, though, the alchemical agent by which fiction transmutes my secret envy or my ordinary dislike of "bad" people into sympathy is desire.
He is the agent by which her delicate balance is disturbed through his insistence that she must discover her dark side by some form of physical and spiritual abandonment.
Mr. Nelson turned down a publicity campaign pattiotically conceived by Steve Hannagan, the press agent, by which Hannagan hoped to sell factory workers the war-production program much as he had sold the upper class es Miami Beach.
We discover ourselves in climate, and it is because of climate that we have come to express ourselves as we have: "climate…is the agent by which human life is objectivised" (Watsuji 1961, 14).
"In a no-body murder case you have to prove that they are in fact dead and you have to prove the agent by which they died".
Identifying the causative agents, mechanisms by which they act, and any potential target populations, present the opportunity to intervene and protect the reproductive health of workers.
Government is our agent, the means by which the (warm blooded, fully natural, NOT-corporate) people of these United States express our will and wisdom... or our passivity and ignorance.
Thus, the State remains responsible when the failures of its agents sabotage the measures by which it secures for its citizens their constitutionally-mandated rights.
