The phrase 'fill a deficiency' is correct and usable in written English.
You can use it when you want to say that something or someone has improved a lack or an absence of something. For example: The new employees filled the deficiency in the marketing team.
His deficiencies on that score could fill a book.
In each of us there is something unfulfilled, some ache or deficiency of character that leads us to fill a hole in the heart with the love of strangers.
"We look to see where there's a pressing need to fill a gap if there isn't a guideline, or to repair some sort of deficiency," says Mr Justice Globe, a high court judge who sits on the panel.
Cortázar goes on: "Every question of this type is always more than a question; it confirms a deficiency, a need to fill an intellectual or psychological void, and it often shows that an answer is less important than being able to fully live the question, to eagerly move forward along the paths that open up inside us".
We argue that database support for design processes is still inadequate, despite the many transaction models that have been put forth to fill this deficiency.
Probably, the varying results are related also to surgical technique [ 11] and different types of bone grafts used to fill pelvic deficiency [ 41].
Because the radius of Hg2+ is not similar to Ca2+, Hg2+ cannot fill in the deficiency.
In this circumstance, biogas adopters needed to fill their energy deficiency by relying on additional resources.
It is known that sterols play important role in the interactions of P. infestans with potato tissues, since the fungus exhibits auxotrophic requirements for sterols and fill up sterol deficiency at the expense of the host tissues [29].
"The question is whether she will bring someone in who can fill those deficiencies".
