safety latch

基本解释

My father glanced at my mother and shrugged, but for once he didn’t ask who before unchaining the safety latch.
爸爸耸耸肩，扫了眼妈妈，平生头一遭他没先问是谁就解开了安全闩。
When you are inside your room, please use the cat eye and the safety latch on the door as additional security measures.
您在房间时，为了更加安全保险，请使用您房间门上的窥视镜及安全锁。
0772zd.cn
Polycarbonate full-face visor complete with peak and safety latch. Supplied with screw fasteners, and a foam sealing strip, the visor can be easily attached and removed from the helmet.
配有安全扣的全面部遮阳面罩，配有螺丝紧固件，以及泡沫密封条，遮阳面罩可以容易地安装在头盔及卸除。