【运输】安全开关

灯的连接情况是这样：当主安全开关接通时，电机吹风机便自动工作，使灯罩内的空气环流起来。

safety margin

safety pin

skin: protective clothing, boots/safety shoes, PVC gloves,

occupant safety

safety drive control responsive to conditions relating to the dead-man's handle

safety-pin (safety pin)

safety vent

low pressure safety cut-out