... 非传统安全威胁 nontraditional security threats 安全警戒线 security cordon （中国日报网英语点津 实习生 沈清，编辑 Helen） ...
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你可以看到已经拉起了安全警戒线，因此，我也不想安排第一趟航班了。
You can see there's already a security line, so I don't think I'll make the first flight.
法国核安全管理局表示，目前已经在马尔·库尔核电站周围建立了安全警戒线作为预防措施。
The French French Nuclear Safety Authority said a security cordon was set up around the Marcoule plant as a precaution.
安全部立即组织保安员，划定以爆炸或爆炸物为中心的警戒线，控制现场，楼层客房区可关闭防火门；
Security department immediately organized security guards, define the alert level as explosive or explosives for the center to control the scene, floor district can closed the fire doors;
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