At Frankfurt GM's Opel unit showed a small diesel-electric hybrid with a battery that can be recharged from the mains to give an electric-only range of 40 miles.

在法兰克福展销会上，通用的欧宝系列向人们展示了一款带有充电电池的小型电力柴油混合引擎，它可以从主电力系统里获得电能，而这些电能只能让车辆行驶40英里。

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The unit is not disconnected from the AC power source (mains) as long as it is connected to the wall outlet, even if the unit itself has been turned off.

只要是电源线仍接插在墙上电源插座，即使关掉机器上的电源开关，但机器仍并没有完全断开AC主电源。

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Pressing this button will also illuminate the display screen for 10 seconds if power unit is in battery operation (screen will always be illuminated in mains operation).

如果使用电池供电，点摁此按钮后，显示屏仅显示10秒钟(在主要操作时，显示屏始终明亮显示的)。

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The corrosive nature of the ground soil and pressures from a nearby brick wall and telecom unit may have caused a fracture in the cast iron mains pipe, the HSE said in its report.

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