警戒

They appeared to be flying at an altitude of about 3,500 meters (11,480 feet), and allegedly surrounded the Air Force jet as it conducted routine anti-drug trafficking vigilance in Campeche. Only three of the objects showed up on the plane's radar.

他们当时似乎飞行在3500米（11，480英尺）的高度，并且据称一度还包围了这架正在坎佩切州执行例行的反贩毒走私警戒任务空军飞行器，但只有飞机的雷达上只显示了其中的三个物体。

Stephen Crane begins a new course of realism in The Red Badge of Courage.

史蒂芬起重机开始勇气的红色半自动防空警戒管制组织的写实主义的新课程。

The National Hurricane Center issues hurricane watches for storms that may endanger communities, and hurricane warnings for storms that will make landfall within 24 hours.

国立飓风中心，对於可能会危害社区的暴风雨，会发布飓风警戒；对24小时内会登陆的暴风雨，则发布飓风警告。

For the nation's AMBER Alert coordinators.

为国家的安珀警戒协调员。&/页&

Requiring someone with an MBA to serve a prison term at a dehumanising maximum-security penitentiary would be a real deterrent.

让一个有MBA学位的人在一所没有人性、警戒力度最大的监狱里服刑，将是一种真正的威慑。

He had passed the word to all his lieutenants that their troops be placed on alert.

他之前给全体副官传话，命令他们的部队进入警戒状态。

In all but the sharpest neighbourhoods, it'll be a surprising proportion.

除了在警戒心极强的社区之外，不上锁的比例之大，简直让人吃惊。

Traveling on the subways in 2003, there is virtually no graffiti to be seen on the outside of trains, and only dim scratchings here and there on the insides.

80年代，在高警戒环境的影响下，地铁涂鸦开始渐渐消失。1989年，最后一辆满载着涂鸦的列车停运，结束了列车涂鸦的时代。2003年的列车上几乎已经再也无法再看到车身上涂鸦的影子。

As we know,the measurements of shipborne infrared surveillance system are only two angles,which make the tracking problem become more difficult.

通过讨论舰载红外警戒系统的多目标跟踪算法，分析目标与传感器的特点，提出了一整套多目标跟踪的算法。

An Afghan security policeman stands guard in front of the gate of the jail where Afghan journalist Sayad Parwez Kambaksh is held in Mazar-i-Sharif, the capital of Balkh province, north of Kabul, Afghanistan, Wednesday, Jan.

1月23日周三，喀布尔北的巴尔克省首府马扎里沙里夫，一个阿富汗安全警察在关押着阿富汗记者Sayad Parwez Kambaksh的监狱大门外警戒。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。