The phrase "key to evaluate" is grammatically correct and can be used in written English.
It means an important aspect or factor used to assess or judge something. Example: "In order to determine the effectiveness of this new teaching method, student engagement will be a key factor to evaluate."
Thus, the key to evaluate the stress ratio R in service load is an accurate determination of H/s.
Geomorphology has long been recognised as a key to evaluate the interplay between tectonics and landscape geometry in the regions of active deformation.
Using remote sensing technology to monitor annual and inter-annual NPP change is the key to evaluate the health condition of ecosystem of the wetland.
The Newborn Individualized Developmental Care and Assessment Program (NIDCAP) is based on preterm infant's observation during hospitalization and considers infant's behavior as the key to evaluate the level of neurobehavioral maturation.
The impacts on the fibrinolytic system are the key to evaluate the effect of thrombolytic drugs.
It is key to evaluate to which extend advances in often highly selected patients in randomized controlled trials have translated into the overall patient population.
The key to evaluating such claims will be how U.S. government regulators choose to define the relevant "markets".
Marginal discrepancy is key to evaluating the accuracy of fixed dental prostheses.
Process-based assessment using satellite datasets will also be key to evaluating and constraining the high-resolution climate model.
It is proved through years of development at ultra-high water cut stage in the Daqing Oilfield that the indexes of development technologies are the key to evaluating water flooding development effect at ultra-high water cut stage.
If the optimal delivery of mental health treatment ultimately depends on examining outcome, then precise, reliable, valid, informative, and user-friendly measurement is the key to evaluating the quality and efficiency of care in clinical practice.
