... in Xiandai: 1, Ship endoscopy:railways, ships for inspection of turbines, heaters, diesel engines, boiler flames, pipelines ... rust and blockage of the drainpipe. 5, nondestructive Testing endoscopy:electronic, electrical industry for mechanical motion inspection, parts inspection, and ... can be dots through the endoscope, convenient and efficient time-saving 7, criminal investigation Endoscopy: ...