1.使从座位上摔下,把...拉下马来
2.使失去座位;夺去(议员的)议席,使失去资格;使离职
1.to remove someone from a position of power, for example by voting
2.if a horse unseats its rider, it throws them off its back
1.Excess pressure unseats the poppet, allowing flow with minimal increase in system pressure.
多余压力从阀门排出,使得流体通过时系统增压最小。