21ST CENTURY ????

21ST CENTURY ?????????????????????????????????????????????????????21ST CENTURY???????CFC????????????????????????????????CFC???????????????????CFC??????????????15%-33%??????????????????????????????????????????

???????????????????????????????????2006??????????????????????????????????21ST CENTURY ????????

21ST CENTURY ??????????????????????????1500????????????????????????????????????????????????????????????????????????????????????????????????

?????

??	JES-122a	JES-222a	JES-5022a
??	C3H8&CRH10&*	C3H8&*	C3H8&*
??	0.53*	0.5066*	0.5066*
???	-286^oF	-305^oF	-305^oF
??	-36.1^oF	-44.5^oF	-52^oF
???	1246^oF	873^oF	873^oF
??	R12&R134a	R22&R410a	R502&R507

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