The phrase "are only preferred" is correct and usable in written English.
It can be used when discussing choices or options that are favored over others in a specific context.
Example: "In this study, certain methods are only preferred when the conditions are optimal for their application."
Alternatives: "are merely favored" or "are simply chosen".
However, the option of incineration was only preferred when it was using the best technology and generating energy, preferably energy that was directly replacing fossil fuel use, which is blamed for the greenhouse gas emissions that help cause global warming, said James.
Although engagement is only preferred by few people as their primary investment strategy (Table 9) an overwhelming majority of investors expect their fund to engage: 86.4 % of SR and 80.8 % of INT investors are of the opinion that an ethical fund should influence companies to take stronger social responsibility (Table 15).
However, the adoption of association rules is only preferred over FIM-based approaches when knowledge regarding the dependencies across rows (or columns) is available.
Of the three species, T. pratense had the highest Ntot and lowest C/N ratio across treatments, however was only preferred in +M treatments.
Main roads were only preferred for travel during night time, with wolves being 1.9 times more likely to travel on a main road than off road (P = 0.002, Table 3).
Primary cytology screening was only preferred in scenarios with low costs of cytology and in scenarios with high prevalence of HPV in combination with high costs of HPV testing.
Flores (node A, sp: 0.41) is reconstructed as the ancestral region of the species differentiation in the Azores, but is only marginally preferred to São Miguel (sp: 0.39).
The preferred model included NPP, biogeographic realm and biome type as predictors, although this model was only moderately preferred over the latter two predictors excluding NPP.
"I realized that renting out a room at a restaurant and watching the game in the company of my dad, my son, and my best friend was not only preferred, but really the only way I would have it," Lillig explained.
Infants who are only a year old prefer to look at faces that adults consider attractive, and we often subconsciously attribute positive characteristics such as intelligence and honesty to physically attractive people.
