Necessary improvements are made on the key structure of cross-flight, so that decrease the equipment failure rate, prolong the successive operating time, obtain good benefit for the enterprise.
拆除若干组损坏频繁的十字抄板，代之以升举抄板，改造后设备故障率降低，连续运行时间延长，企业效益提高。
The time-of-flight ranging system may be applied to not only entry security systems but also to tracking systems such as systems for tracking toddlers, personnel and equipment.
飞行时间测距系统可以不仅应用到进入安全系 统而且可以应用到跟踪系统，例如跟踪初学走路的小孩、人和设备 的系统。
The time-of-flight ranging system may be applied to not only entry security systems but also to tracking systems such as systems for tracking toddlers, personnel and equipment.
飞行时间测距系统可以不仅应用到进入安全系 统而且可以应用到跟踪系统，例如跟踪初学走路的小孩、人和设备 的系统。
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