主蒸汽系统 meaning in Chinese

main steam system

Main steam safety valve is the protective device against overpressure in the steam system of nuclear island
主蒸汽安全阀是压水堆核电站核岛内主蒸汽系统的超压保护装置。
When the system pressure drops to the return pressure , the security valve will be closed and stop discharging , in the way of which the pipelines and equipments of the steam system will be protected
当系统运行压力降低至安全阀的回座压力时，主蒸汽安全阀自行关闭，停止排放，从而对主蒸汽系统的管道和设备起安全保护作用。
When the system pressure goes up to the value that will open the security valve , the main steam security valve will be released all by itself , discharge the excessive steam in the system and lower down the system pressure
当系统运行压力上升至安全阀的开启压力时，主蒸汽安全阀自行打开，排放主蒸汽系统中的蒸汽，使系统压力降低。