电池安装在尾巴底部，提供机器人摇摆上升的必要动力。
A battery is at the end of the tail and provides the mass that is necessary to swing the robot upward.
迷人的色彩，舒适的塑胶头，电池安装简单方便。
Charming color, comfortable of plastic head, the battery installs simple convenience.
随着价格的下滑，德国的太阳能电池安装迅速增长。
As prices came down, installations of solar cells in Germany shot up.
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