Abstract: An apparatus for analyzing in a mass spectrograph ions contained in gas emitted from a sample upon application of a laser beam spot to the surface of the sample, the apparatus including a vacuum vessel which houses the mass spectrograph therein, a support structure which supports the sample outside the vacuum vessel, a first laser irradiation device for applying a first laser beam to the surface of the sample, and a second laser irradiation device for applying a second laser beam to the flow of gas generated from the sample and flowing toward the mass spectrograph in the vacuum vessel through a nozzle provided in the same vessel.

Abstract: A plurality of connecting wires to be connected to separate devices are arranged regularly and fastened with a string at the front end, the intermediate end and the rear end corresponding to the position of the respective device so as to provide a flat structure including the fastening points in connection with the arrangement in order and the position of each end of the connecting wires so that the wiring can be easily attained to improve productivity; the reading of wiring diagram in the wiring operation is needless by connecting a data card; the flat structure facilitates employment of machines and the combination with a computer allows a fully automatic system. When the connecting wires are bundled, the increase of occupied sectional area is prevented and the occupied sectional area is substantially the same as that of the conventional one. The present invention is suited to the wiring of electric control devices.