back pressure
美
英
- un.背压力；反压力；回压
- 网络背圧；背压流控；排气背压
un. | 1. 背压力 2. 反压力 3. 回压 |
n. | 1. resistant pressure exerted by a solid, liquid, or gas to the forward motion of a system, especially the pressure opposing the exhaust stroke of a piston in an internal-combustion engine 2. the pressure exerted by fluids in the bore of an oil well on the oil and gas in the reservoir. 3. pressure within a blood vessel or the urinary system that builds up when there is an obstruction to the flow of fluid |