A、p<sub>0sub><p<sub>asub> B、p<sub>0sub>=p<sub>asub> C、p<sub>0sub>>p<sub>asub> D、p<sub>0sub>≥p<sub>asub>
A、p<sub>0sub><p<sub>asub> B、p<sub>0sub>=p<sub>asub> C、p<sub>0sub>>p<sub>asub> D、p<sub>0sub>≥p<sub>asub>
A、p<sub>0sub><p<sub>asub> B、p<sub>0sub>=p<sub>asub> C、p<sub>0sub>>p<sub>asub> D、p<sub>0sub>≥p<sub>asub>
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、P=P<sub>0sub>-rh B、P<sub>0sub>=P+rh C、P=P<sub>0sub>+rh D、P=rh-P<sub>0sub>
A、p<sub>1sub>q<sub>1sub> B、p<sub>0sub>q<sub>0sub> C、p<sub>1sub>q<sub>0sub> D、p<sub>0sub>q<sub>1sub>
A、q<sub>0sub>p<sub>0sub> B、q<sub>1sub>p<sub>1sub> C、q<sub>1sub>p<sub>0sub> D、q<sub>0sub>p<sub>1sub>
A、△dB=20lg(P/P<sub>0sub>) B、△dB=10lg(P/P<sub>0sub>) C、△dB=20lg(P<sub>0sub>/P) D、△dB=10lg(P<sub>0sub>/P)
A、P<sub>出sub>≌0 B、P<sub>出sub>=0.02MPa C、P<sub>出sub>=0.06MPa D、P<sub>出sub>=0.1MPa
A、1.5p<sub>dhsub>和≯p<sub>dhsub>+0.25MPa B、(1.1~1.15)p<sub>dhsub>和≯p<sub>dhsub>+0.25MPa C、(1.1~1.15)p<sub>dhsub>和1.5p<sub>dhsub> D、p<sub>dhsub>和≯p<sub>dhsub>+0.25MPa