The phrase "are necessary to explain" is correct and usable in written English.
You can use it when discussing the importance of certain elements or information that must be clarified or justified in a particular context.
Example: "The following data points are necessary to explain the trends observed in the study."
Alternatives: "are essential to clarify" or "are required to elucidate".
"My answer is these are always difficult and the purpose of the bills is to establish additional consultative procedures that are necessary to explain and ultimately build more support for a final package".
In fact, only six quarks, six leptons, and their corresponding antiparticles are necessary to explain the variety and behaviour of all the subatomic particles, including those that form normal atomic matter.
The law of self-defense requires the jury members to put themselves in the position of the person who used lethal force, and the Court of Appeals said that experts are necessary to explain the emotional paralysis of battered women who do not leave the person hurting them.
It is shown that in both examples, poroelastic effects are necessary to explain the relevant mechanics.
A few notational conventions and preliminary considerations are necessary to explain the formal accounts of theoretical terms and their semantics.
Thus, some interstellar processes (or more precisely, non-stellar processes) are necessary to explain the large abundance of small grains.
Certainly, the authentic structures of VNTs are necessary to explain the mechanisms of substrates recognition and transport.
Using simulations, this study demonstrated that both intracellular supercooling and osmolality are necessary to explain graded freezing results.
Baehr (2006b) argues that virtue reliabilists should not neglect trait-virtues, because these are necessary to explain some cases of knowledge.
Novello is also insisting [13] that more scalar degrees of freedom are necessary to explain the gravitational field around the spinning source more practically.
PTP1B gene expression seems to be linked to septic endothelial dysfunction and further studies are necessary to explain more the role of PTP1B expression in sepsis.
