The active systems consist of several pumping systems of varying dischargepressure and flow rates, e. g., high head injection system, low head injection system.
能动系统由不同注入压力和流量的泵系统组成，如高压安注系统，低压安注系统。
2
Fluorescent is a lowpressure mercury-smoke arc discharge lamp.
日光灯是一种低气压的汞蒸气弧光放电灯。
3
The mechanism of the low-pressuredischarge and multipactor in satellite-borne microwave equipment, and comparison between two discharge tests were described in this paper.