青云翻译

End of the first line of the body to set an optical switch, optical switch using irradiation from the bottom up approach

Line end sets a photoelectric switch, irradiation of photoelectric switches from bottom to top

The line body reason establishes a photoelectricity switch, the photoelectricity switch selects the method which upward shines from under

Line body-side and set up a photoelectric switches, photoelectric switches used in the direction of the manner in which exposure

Line end sets a photoelectric switch, irradiation of photoelectric switches from bottom to top