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並前往https://iopscience.iop.org/article/10.1088/1757-899X/671/1/012139/pdf

Investigation of Environmentally-Friendly Alternative ...

refrigerants, with R134a (R600a/R290/134a). The mixing of HCs and R134a led to reduced flammability and used R134a in a ratio within low GWP criteria, ...

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