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}Uz߭hضǶ?

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(1)

ۺ}UzڄBֶܱLrgpģ

ڳس£ҎҎۺ}Uz늉ͣ1000СrʧPTCԡ ۺ}UzڄB̎ĕrgԽLԽпֵ}ԭ,,ɴ˿ܲʼOҪÿNۺ}UzͣĕrgS¼Ͷͬʹ×lǺҪ]֮һ

ۺ}Uzܻ}

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늉cn¾ۺ}Uz܄ٴΣ

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(2)

ۺ}Uzϕж늉Vdop

ͬ·вeһv֪ƽB,,늉Ӌھۺ}Uz늉ֵR1maxMӋ㣻͉Բֵ ,,RmaxRmaxδṩr² Rminc R1maxƽֵIh Rۺ}Uz(R1max Rmax Rmin + R1max/2)t·оۺ}Uzϵ늉 Vdrop = Ih x R

Rmin, RmaxcR1maxą^e

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(3)

ۺ}UzĹԭʲ᣿

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