There is a supplementary water supply in case the main supply fails.
万一主水源断了，我们另外有供水的地方。
The Company closed the main supply monitoring, surveillance cameras, monitoring equipment, hard disk recorders, network cameras, smart ball, ball speed, infrared cameras, micro-cameras and so on.
本公司主要供应闭路监控，监控摄像机，监控器材，硬盘录像机，网络摄像机，智能球，高速球，红外摄像机，微型摄像机等。
The Company closed the main supply monitoring, surveillance cameras, monitoring equipment, hard disk recorders, network cameras, smart ball, ball speed, infrared cameras, micro-cameras and so on.
本公司主要供应闭路监控，监控摄像机，监控器材，硬盘录像机，网络摄像机，智能球，高速球，红外摄像机，微型摄像机等。
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