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r11=r22 r12=r21 r11=r12 r21=r22
R=R1+R2 R=R1×R2/(R1+R2) R=R1+R2/R1×R2
r11=r22 r12=r21 rll=r12 r21=r22
R1+R2 R1·R2 R1·R2/R1+R2 R1+R2/R1·R2
R1+R2 R1·R2 R1·R2/(R1+R2) R1+R2/R1·R2 (R1+R2)/R1·R2
R22>R12>R134a R134a>R12>R22 R22>R134a>R12 R134a>R22>R12
r11=r22 r12=r21 rll=r12 r21=r22
r11=r22 r12=r21 r11=r12 r21=r22