At daybreak each mirror array will turn sunward, and concentrated light will heat a Stirling engine held at the focal point, driving pistons and making electricity.

清晨，每一个镜面阵列自动转向太阳，将光通过反射集中到聚焦点加热斯特林发动机，驱动活塞，生产电力。

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Mr Stirling said anyone who signed up before the cut-off point at the end of August would still receive their newsletters and a birthday card.

BBC: Beano Club closed to new members