在当天上午8时47分第一次撞击发生时，这名男子正在北塔乘电梯上行到达约第70层。
The men were on their way up the north tower of the centre, close to the 70th floor, when the first plane struck at 8.47am.
我也努力享受那些小乐事，就像我们在电梯上按了3，电梯上行，开门见到楼层上有同样的数字3呼应着。
I also tried to appreciate small blessings, like that when we pressed 3 on the elevator, it went up and opened on a floor with a corresponding number 3.
本课题研究的目的是开发一套高效可靠、技术先进的检测系统，用于检测电梯上行超速保护装置的性能质标。
This paper focuses on the research of a suit of efficiently dependablely and technique forerunner detection system, using for detecting an up-direction overspeed protection device of elevator.
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