The magnetic control video camera has the advantages of capability of utilizing the magnetism to focus, convenient operation, simple structure and low cost.
利用磁性实现调焦，操作方便而且结构简单，降低了成本。
The magnetic control video camera has the advantages of capability of utilizing the magnetism to focus, convenient operation, simple structure and low cost.
利用磁性实现调焦，操作方便而且结构简单，降低了成本。
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