The phrase "a combination of cooler" is not correct in written English as it is incomplete and lacks context.
It could be used in a context where you are describing a mixture or blend of items, but it needs additional information to be clear.
Example: "The new drink is a combination of cooler flavors that refreshes the palate."
Alternatives: "a mix of cooler" or "a blend of cooler".
Irwin L. Kellner, an economics professor at Hofstra University in Hempstead, said that although the warm weather may have "slowed things down, a combination of cooler weather this weekend and the start of Hanukkah" should pick things up.
A combination of cooler water and increased wind shear took toll on Terry.
Shortly after its peak, a combination of cooler waters and increased wind shear associated with the subtropical jetstream resulted in rapid weakening.
In this paper, a low-energy air-conditioning strategy is proposed, which is a combination of cooled ceiling (CC), microencapsulated phase change material (MPCM) slurry storage and evaporative cooling technologies.
The incoming mixture with methane concentration Xin is chilled by a combination of cooling and expansion to a point close to, or just over, the solid boundary of the vapour-liquid phase (within 5°C), where the recovery of methane is maximal (van Wissen 2006).
A combination of cooled air and water in the form of a mist called hyraircooling is an innovation in cooling of vegetables.
The plates were then incubated for a further 5 7 days under a combination of cool white and black (UVA) fluorescent lights with a 12 h photoperiod.
Illumination was provided by a combination of cool-white fluorescent and incandescent lamps within the greenhouse, with a day/night temperature of 26-28/18-20°C 26-28/18-20°C
Humidity inside the chamber was maintained at 65%, and lights were provided with a combination of cool white and warm white fluorescent lights, for a fluence of 125 to 175 μmol m−2 s−1.
Finally, when spray activation occurred in hotter environments, probably requiring a combination of fuel cooling and flame cooling effects, fire suppression was predicted but with an over-estimated duration.
They were mostly young, a combination of futuristic cool and slightly awkward.
