传统手扶电梯的工作原理是依靠楼梯上升后，在终点处回环，再变做楼梯下面继续运行，从而实现楼梯的颠倒，重复循环使用；
The traditional escalator works by turning the steps upside down and looping them underneath the staircase to take them back to the start.
计算机编程技术，用来结束运行中的重复循环。
Computer Science a computer programming technique for ending a repeated cycle of operations.
实践证明：利用这种无重复灌水泵设计能解决离心泵的气缚现象，降低了运行及设备维修费用，此技术在废水处理和循环回收工程上具有推广意义。
Practice proves that using this design will reduce both operation cost and maintenance cost. This technology has popularizing significance in sewage treatment and water reclamation engineering.
实践证明：利用这种无重复灌水泵设计能解决离心泵的气缚现象，降低了运行及设备维修费用，此技术在废水处理和循环回收工程上具有推广意义。
Practice proves that using this design will reduce both operation cost and maintenance cost. This technology has popularizing significance in sewage treatment and water reclamation engineering.
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