They are researching on a new type of railway engine.
他们正在研制一种新型的火车头。
The system was suitable for VRLA battery used in telecommunication, electric power, railway engine and UPS for back-up and starting.
该系统适应于电信、电力、铁路机车及中大型UPS等后备方式和起动使用情况下的蓄电池监测管理。
The system was suitable for VRLA battery used in telecommunication, electric power, railway engine and UPS for back-up and starting.
该系统适应于电信、电力、铁路机车及中大型UPS等后备方式和起动使用情况下的蓄电池监测管理。
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