'which is indispensable to' is a correct phrase that can be used in written English.
You can use it when referring to something that is necessary or essential to something else. For example: Education is an essential component of success, which is indispensable to achieving one's goals.
In this important book, Dan outlines a rationale and a roadmap for reinvigorating America's nuclear leadership, which is indispensable to protecting our planet and all who live here.
Spender is brisk and engaging, Matossian ardent and often moving, but neither rivals Herrera's comprehensiveness, which is indispensable to a subject who cannot but remain elusive.
Finally, the method to identify optimal points of the linear compressor has been described, which is indispensable to the design and operation of moving magnet linear compressors.
The analysis and rearrangement of facts which is indispensable to the growth of knowledge and power of explanation and right classification cannot be attained purely mentally — just inside the head.
But the forefathers thought this was not too great a price to pay for that decent privacy of home, papers and effects which is indispensable to individual dignity and self respect.
Most members of both groups must be trilingual fluent in the language of business, able to understand and translate the language of IT, and at ease with the natural language of sociability, which is indispensable to relationship management.
The course introduces practitioners of environmental science and sustainability management to the data analysis techniques and statistical methods which are indispensable to their work.
Their demands could be ignored only at the cost of our losing our bases in Thailand, which are indispensable to our conduct of the war in Vietnam.
and agility and verve as contrary to dignity". Wallace does not have this sense of history, which was indispensable to a moralist like Musil -- or, indeed, Mencken, Wallace's precursor in the distinguished American tradition of boisterous iconoclasm.
However, it was difficult to express α7nAChR on commonly used host cells because of the lack of the chaperone protein RIC-3, which was indispensable to promote folding, assembly, and surface expression of α7nAChR.
The award, named after a former lawyer for the guild, "is given to the WGA member whose script best embodies the spirit of the constitutional and civil rights and liberties, which are indispensable to the survival of free writers everywhere," the group said in a statement.
