Assertion: cathode ray tube | /r/HasProperty | a panel part
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Source sentences:
text: A cathode ray tube is characterized by a vacuum tube shell consisting of the following: a panel part with a fluorescent surface coated with a fluorescent body on the inner surface; The tube neck part contains an electron gun with an electron beam generation part with a para-thermal cathode Isomer and a control electrode and an acceleration electrode, and a main lens part consisting of a focusing electrode and an anode electrode that focuses and accelerates the electron beam; And the pyramidal portion, connected to the panel portion and the tube neck portion, where the para-thermal cathode Isomer mentioned above has a basal metal with a thermally emitted material layer; Keep base metal on one end and hold heater tube inside; The heater has a large diameter part on the main part of the heater, a small diameter part on the side of the heater's leg, and an alien support body supporting the sleeve; And a cathode plate with a large diameter on one side of the heater's leg, a small diameter on the main side of the heater, and fixing the outer side of the other end of the sleeve and the small diameter inner side of the support body.