The phrase "a secondary important" is not correct in English.
You might be trying to express that something is of secondary importance, which is a valid concept.
Example: "While the main goal is to increase sales, improving customer service is a secondary important factor to consider."
Alternatives: "of lesser importance" or "not primary".
A secondary but important result is a derivation of closed-form expressions of the Cramer-Rao Lower Bound (CRLB).
Therefore, as a secondary purpose, important from the public-health perspective, we would present the prevalence of eBP (treated or not) as indicative of unmet health-care need in China.
Therefore, as a secondary but important purpose from the public-health perspective, we would present the prevalence of eBP (treated or not) as indicative of unmet health-care need in China.
A secondary but important consequence of these developments was the adoption of on-board diagnostics regulations aimed at insuring that emission control systems would operate as intended for a prescribed period of time (or vehicle mileage).
In this parameter, shear strain amplitude has a primary influence on fatigue damage and the maximum normal stress on the maximum shear plane has a secondary, but important, influence.
While most of what is taught in a writing program pertains to the craft of writing itself, a secondary but important aspect of these programs is to create knowledgeable, sophisticated literary citizens.
A secondary but important outcome was the enhancement of learners' professional skills and better research awareness and advocacy within KATH.
A secondary, but important, access to RGD data is the display of RGD-generated annotations on other publicly available websites.
A secondary, yet important finding of the present trial, was the recording of low nocturnal DPP values in a group of glaucoma patients.
Taken together, data from multiple studies suggest that inflammatory processes play a secondary but important role in 6-OHDA-induced nigral degeneration.
