R-134a造句

Investigation on Convective Boiling Heat Transfer of R-134a in Helically-coiled Pipes;

EXPERIMENTAL INVESTIGATION ON R-134a BOILING HEAT TRANFER IN MICROCHANNEL WITH CAVITATION ENTRY

A vapour cycle upgrade was undertaken to meet the increased avionics cooling requirement, while also introducing an environmentally friendly cooling refrigerant (R-134a).

You take a spray canister of refrigerant, R-12 if you can still get it, what with the ozone hole and everything, or R-134a, and you spray it into the lock cylinder until the works are frozen.