平衡重安全阀
counterweight relief valve
平衡重安全阀压力试验
counterweight relief valve pressure test
铲刀控制阀安全阀
blade control valve relief valve
充油安全阀阀芯
charge relief valve poppet
电磁阀安全阀
solenoid valve relief valve
辅助阀安全阀调定
auxiliary valve relief valve setting
提升器电磁阀安全阀
lift solenoid valve relief valve
压力控制顺序阀安全阀
priority valve relief valve
转向阀安全阀
steering valve relief valve
转向控制阀安全阀
steering control valve relief valve
安全配箱量
Safety container possession
网络安全配置评估
network security configuration assessment
最低安全配员
minimum safety manning of ships