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:[]9-1[]12[]F[][][][][][]=G-FF=G-F[][][][][][]2[][][][][][][][][][][]P871212GFF=GFP95123456G/NF/NF/NG/NG/NG/NF=GF=GF=G=gVFGFGF=GFGP63----A561245P973411N23FGF200*50124[][]1OF1F2F1F2OAOF1ORTOACOAOCSin=OC/OAOC=SinOAOCOAOC2[][]F1L1F2L2X=YXYF1L1F2L2F1L1=F2L2F1+L1=F2+L2F1L1=F2L2F1/L1=F2/L2F1/F2=L2/L1[]F1L1=F2L2[]F1L1=F2L212[][]12ABCD123.1234512ABCD1221122.93107J/kg19502619871102003140200716012122040ABCD121212342112(1)?(2)??(3).(4)(5)3(1)(2)(3)?(4)(5)1X23;;;45,12345