Is your building perimeter secured by an adequate wall or fence?

建筑物周围是否有完善的围墙或护栏？

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From here, public waiting areas extend north and south to the building perimeter creating a light-filled central axis.

在这里，公共等候区北部和南部扩展到建筑周边，营造了一个明亮的中轴线。

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The farther inside you are from the outside perimeter of the building the greater the probability that your escape route will be blocked.

你距离建筑物的外边缘越远，你的逃生路径被阻挡的可能性就越大。

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At Boston Children's Hospital, the disaster-control team secured the building's perimeter, according to Patricia Branowicki, vice president for medicine and patient services.

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The weight of the building is supported entirely by 12 stout outer columns, which form the square perimeter of the building, plus four inner columns at the corners of a smaller, inner square.

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Helo two would fly to the northeast corner of the compound and let out Ahmed, Cairo, and four SEALs, who would monitor the perimeter of the building.

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