Automatic Safety Device
auxiliary safety device
condenser safety device
core interlocking safety device
exclusive safety device
overstroke safety device
oxygen-deficiency safety device
poor connection of secondary safety device
safety device
安全保障措施
安全设施
保护设备
安全设备
保险机构
安全装置
保险器
保险结构
保险件
安全门
安全装直
安全架
wind safety device against wind
safety conference on safety
“Master Backup Slave” architecture