圆柱体本身含有一个微型数码摄像头，一个无线电发射器，一个感应动力的发电装置，以及一个方位驱动器。

The cylinder itself contains a small digital camera, a radio transmitter, an induction-powered charging device to provide electricity and an "orientation actuator".

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通过一个圆柱式连接器，Arduino 能够接受一定电压范围内的电源（有关更多细节，请参阅 参考资料）。

Through a barrel connector, the Arduino can accept power at a range of different voltages (see Resources for details).

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开式水浴加热器由带可拆卸式火焰管和气管束的圆柱形容器组成。

The open water bath heater consists of a cylindrical vessel with removable flame tube and gas tube bundle.

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