P<sub>2</sub>口的字节地址为()
A、80H
B、90H
C、0A0H
D、0B0H
A、80H
B、90H
C、0A0H
D、0B0H
A、P<sub>1sub><P<sub>2sub> B、P<sub>1sub>>P<sub>2sub> C、P<sub>1sub>=P<sub>2sub> D、P<sub>1sub>=0.5P<sub>2sub>
A、p<sub>1sub>=p<sub>xsub>,p<sub>2sub>=p<sub>Lsub>(p<sub>1sub>≠p<sub>2sub>) B、p<sub>1sub>=p<sub>2sub>=p<sub>Lsub> C、p<sub>1sub>上升至系统溢流阀调定压力p<sub>1sub>=p<sub>ysub>,p<sub>2sub>=p<sub>Lsub> D、p<sub>1sub>=p<sub>2sub>=p<sub>xsub>
A、P<sub>1sub>> P<sub>2sub> B、P<sub>1sub>< P<sub>2sub> C、P<sub>1sub>=P<sub>2sub> D、P<sub>1sub>、P<sub>2sub>无关
A、进口压力p<sub>1sub>=p<sub>ysub>,出口压力p<sub>2sub>=p<sub>jsub> B、进口压力p<sub>1sub>=p<sub>ysub>,出口压力p<sub>2sub>=p<sub>Lsub> C、p<sub>1sub>=p<sub>2sub>=p<sub>jsub>,减压阀的进口压力、出口压力、调定压力基本相等 D、p<sub>1sub>=p<sub>2sub>=p<sub>Lsub>,减压阀的进口压力、出口压力与负载压力基本相等
A、p<sub>1sub>>p<sub>2sub> B、p<sub>1sub>=p<sub>2sub> C、p<sub>1sub><p<sub>2sub> D、p<sub>1sub>≥p<sub>2sub>
A、进口压力p<sub>1sub>=py,出口压力p<sub>2sub>=p<sub>jsub> B、进口压力p<sub>1sub>=py,出口压力p<sub>2sub>=p<sub>Lsub> C、p<sub>1sub>=p<sub>2sub>=p<sub>jsub>,减压阀的进口压力、出口压力、调定压力基本相等 D、p<sub>1sub>=p<sub>2sub>=p<sub>Lsub>,减压阀的进口压力、出口压力与负载压力基本相等
A、P<sub>1sub>:P<sub>2sub>=1:2 B、P<sub>1sub>:P<sub>2sub>=2:1 C、P<sub>1sub>:P<sub>2sub>=1:1 D、无法判断
A、p<sub>1sub>>p<sub>2sub> B、p<sub>1sub><p<sub>2sub> C、p<sub>1sub>=p<sub>2sub> D、无确定关系
A、P>P<sub>0sub>,防止Cl<sub>2sub>泄漏 B、P<P<sub>0sub>,防止Cl<sub>2sub>泄漏 C、P>P<sub>0sub>,防止空气混入 D、P<P<sub>0sub>,防止空气混入
A、H<sub>1sub>>H<sub>2sub>;P<sub>1sub>=P<sub>2sub> B、H<sub>1sub>=H<sub>2sub>;P<sub>1sub>>P<sub>2sub> C、H<sub>1sub>>H<sub>2sub>;P<sub>1sub>>P<sub>2sub> D、H<sub>1sub>=H<sub>2sub>;P<sub>1sub>=P<sub>2sub>