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.
电梯上行中因为停电，我被困在电梯里。我记得冷风呼啸地从黑暗的电梯仓旁吹过，即便是在那样令人绝望的时刻，我仍然认为这一切都是值得的。
I remember that even in that desperate moment, with the cold wind blowing furiously through the dark shaft, I thought that it had all been worth it.
本文以在用电梯冲顶事故的现象，从符合标准的角度谈实用的上行超速保护装置问题、防范的主要方法及解决的办法。
This paper analyzes the phenomenon that the lift washes an accident. It discusses practical upward and overspeed problems of the protector main method and solving way.
电梯业界已经认识到这一点，并且制定了相关标准以确保现代的电梯不发生这种安全问题- - -即上行保护。
The elevator industry has recognized this danger and has written elevator codes that require that modern elevators be protected against this situation.
电梯业界已经认识到这一点，并且制定了相关标准以确保现代的电梯不发生这种安全问题- - -即上行保护。
The elevator industry has recognized this danger and has written elevator codes that require that modern elevators be protected against this situation.
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