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Who No matter who Whoever Whomever
pR 22 > pR 12 > pR 134a pR 134a > pR 22 > pR 12 pR 22 > pR 134a > pR 12 pR 134a > pR 22 > pR 12
a more severe the most severe the more severe a most severe
pa=pr+pn pr=pa+pn pr=pa； pa=pr—pn
CR CR+PR PR CR+PR+NC CR+PR+NC+PD
VSWR=（1+（Pr/P开平方）/（1-（Pr/P开平方） VSWR=（1-（Pr/P开平方）/（1+（Pr/P开平方） VSWR=（（Pr/P开平方+1）/（1+（Pr/P开平方） VSWR=（1+（Pr/P开平方）/（（Pr/P开平方-1）
to cure; easing curing; to ease to cure; having eased curing; to ease
how much severe how much more severe how more severe how severe
Pfr/Pr高； Pfr/Pr低； Pfr/Pr适中； 与Pfr/Pr无关。
PR=15~PR=25 PR=25~PR=35 PR=35~PR=45 PR=14~PR=55
By means of In terms of With regard to In response to
promise profit procedure product
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