用R290造句子，“R290”造句
來源：國語幫 2.34W
An Experimental Study of Cascade Refrigerating Cycle with Natural Working Fluids R290 and CO_2;
The Experimental Study on Alternative Refrigerant R290 Used in Small Commercial Cabinet
Stability experiments on binary mixture refrigrant of CO_2/R290
Experimental study on R744/R290 in low-temperature circuit of cascade refrigeration system
Ivestigation on Flow Boiling Heat Transfer Characteristics of R290 and R404A in Horizontal Microfin Tube;
OPTIMIZATION OF ROTARY COMPRESSOR FOR AIR-CONDITIONER USING R290 TO REPLACE R22
