barrier seal meaning in English

阻档层密封

Emergency shutdown activated . force - barrier seal in 30 seconds
紧急程序启动防护屏障将在30秒内关闭
Detail specification for multi - contact circular electrical connectors for d . c . and low frequency applications - bayonet coupling non - barrier sealed , environment resistant with rear insertable , rear release , rear removable crimp contacts also barrier sealed with non - removable solder contact styles - full plus airframe fit assessment
直流和低频用多触点圆形电气连接器详细规范.带后可插入后释放后可拆卸压接触点的无档板密封耐环境影响及带不可拆卸钎焊触点的挡板密封卡口接头.全面附加机体配件评估