如何理解这句话? when the spare pump was started, the off-line pump immediately saw full discharge pressure on its seal which caused the off-line pump seal to fail, spilling about 500 gallons of material into a contained area until the pump could be shut off. 试译:当备用泵启动,停机泵密封圈处立即达到完全排出压力,密封圈引起停机泵密封失灵,约500加仑(流体)物质喷入一个封闭区域直至泵停机。查看更多