给出一种新型的工业用内窥镜摄影系统，该系统由内窥镜、光学关节（四节刚性转像透镜导管）、摄影联接管和摄影机四部分组成。
This system consists of fourmain parts, namely, the endoscope, the optical links including four rigid guide tubes for theimage transfer lens, the photographic adapter and the camera.
我认为它是单转点系统是因为后部运动形式像单转点系统。
I think it's a single pivot system because the rear type will just move like a single pivot system.
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