以下为句子列表：
英文: Soon Marconi's own spark-gap transmitters are sending Morse-code pulse streams across his lab without wires.
中文: 不久，马可尼自制的火花放电发送机，就能以无线的方式在实验室里传送摩斯电码脉冲流了。
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英文: The calling distance is up to 20 to 30 meters within an area that is not open and has obstacles, and several transmitters can call one receiver.
中文: 在非开阔有障碍条件下，呼叫距离可达20~30米，并可实现多发一收。
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英文: The changes, which may persist for a long time, can include display of increased numbers of the receptors that respond to the neurotransmitters released by nociceptors and might even include rewiring of connections and a loss of nerve cells that normally
中文: 这种改变可能持续好长一段时间，改变的情况包括对神经传递物（由痛觉受器释放）产生反应的受体数量增加，甚至还可能是神经线路出现新的接线，以及丧失了原本抑制疼痛讯息的神经细胞。
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英文: The hardware consists of 1,500 active RFID WhereTag transmitters temporarily attached to new vehicles as they roll off the assembly line as part of the WhereNet VTMS system; 700 WhereTag transmitters that are permanently fixed to trailers belonging to Nis
中文: 车辆跟踪与管理系统包括1500个临时安装在流水线新车体上的RFID传感器；700个传感器被永久安装在尼桑公司供应商的运输车上或临时安装在其他车辆上以便进行车场管理；120个磁性激发器将安装在门口和场区重要节点；以及一套80个无线定位接入点的内部系统。
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英文: The new characteristics of borehole compensated ability of two transmitters and two receivers acoustic log system were given under a pulse resource and no attenuation ideal beds by numerical simulation.
中文: 摘要通过数值模拟计算给出了点声源、无衰减各种理想地层条件下双发双收声系在不同扩径层段新的声速测井响应特征规律。
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