The leakage rate of building' s insulation roof is usually high, and its leak renovation problem has been longstanding, big and difficult.

建筑保温屋面渗漏率高，渗漏修缮是个老大难问题。

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Now this is a rain gauge, and it's sitting on a roof of a building, and when the water falls into this gauge, it sends a signal to the logic unit of the computer, which immediately notifies the memory bank of the computer to seek out its instructions for a rainy day.

这是一个雨量测量器，安装在一个楼房的,屋顶上，当水流入到这个测量器，它就给计算机的逻辑部件发送一个信号，计算机立即通知内存条,为下雨天找出相应的指令。

哈佛公开课 - 计算机科学课程节选

In a statement, Pratt Institute's administrators said the six-story building's roof and its sixth floor "were gutted, " and the fifth floor was badly damaged as well.

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He was greeted by a giant American flag, which had been unfurled moments before his arrival by fire and rescue workers from the five-story building's roof.

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Details released under the Freedom of Information Act reveal the "snagging" issues have included incomplete work to the building's roof as well as water damage to other areas.

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