The phrase "an important complementary" is not correct as it is incomplete and lacks context.
It can be used when referring to something that adds value or enhances another element, but it needs to be followed by a noun to clarify what is being complemented.
Example: "The new software serves as an important complementary tool to our existing system."
Alternatives: "a significant addition" or "a valuable enhancement."
Which is why I am pleased to be associated (as an adviser) with what could be an important complementary research project.
Still, there is an important complementary role for the government to play where the incentives for private investment are lacking, according to administration officials and computer scientists.
"We hope we will provide an important complementary service for veterans and their families who may not have had services in other ways because of concerns with confidentiality or eligibility," he said.
Yet even if that happens, he said, the sector looks likely to play an important complementary role, alongside more traditional renewable power companies, in helping to cut carbon emissions and conserve resources.
Meditation has been increasingly evaluated as an important complementary therapeutic tool for the treatment of depression.
Traditional Chinese medicine (TCM) is considered an important complementary therapy with beneficial effects for cancer patients.
Programs that support the self-employed and small-scale entrepreneurs in improving their livelihoods are therefore an important complementary intervention.
Our works verify that this method can be a potentially important complementary tool in the study of clinical scientific researches for providing the basis of antitumor drug applications.
The similarities and differences across studies suggest that on-line comments can be an informative and important complementary source of information on the public's attitudes during health crises.
They are an important but complementary piece to the principal strategy of offering fans compelling legitimate alternatives".
COST is seen by many as an important and complementary instrument within the European research funding system which plays an ever-increasing role as a facilitator for participation in larger research activities (Technopolis 2004).
