Railroad signal power system is a special supply power source for train running. The high reliability is required. Thus, its supervisor and control become very important.

铁路信号电源系统是专门给列车运营信号供电的，其可靠性要求非常高，因此，对铁路信号电源的监视和控制十分重要。

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Windpower will remain an unpredictable power source, of course. But as Japan has recently been reminded, a bit more diversity of supply would not hurt.

当然，风力发电仍是一种无法预测的能量资源，不过日本最近已经意识到，丰富自己的能源供应种类不会带来坏处。

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The contract, awarded to Thales Raytheon systems, covers the supply of the radar itself as well as related infrastructure (buildings, power source, communications and protection systems).

这份合同的承包商是泰利斯·雷声系统公司，合同包括雷达本身，以及相关的基础设施建设(建筑、电源、通信和防护系统)。

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Autonomous control over supply, via aggregation in unions, became their only source of power.

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Each unit can also serve as a source of electrical power for the military, or emergency response, something always in short supply in forward operating positions.

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