security perimeter

例句 (10)

• The gunman did not breach the security perimeter around the White House.枪手没有突破白宫周围的安全周界。
• Police established a security perimeter to keep people away from the crime scene.警方设立了安全警戒线，以防止人们靠近犯罪现场。
• Sensors were installed along the security perimeter of the military base.军事基地的安全周界沿线安装了传感器。
• The protesters remained outside the security perimeter during the summit.峰会期间，抗议者留在安全范围之外。
• Guards patrol the security perimeter twenty-four hours a day.警卫每天24小时在安全区域巡逻。
• The security perimeter was tightened following the recent threats.在最近的威胁之后，安全防线被收紧了。
• Authorized personnel only are allowed inside the security perimeter.只有获得授权的人员才允许进入安全周界内部。
• Officials decided to expand the security perimeter for the royal visit.官员们决定为皇室访问扩大安全范围。
• The airport's security perimeter is reinforced with high-voltage fencing.机场的安全边界用高压围栏进行了加固。
• Anyone crossing the security perimeter without a permit will be detained.任何未经许可越过安全线的人都将被拘留。