Abstract: Embodiments of the present disclosure provide an applicator and an application method. The applicator includes a connecting member, a drive member, a spray member, and an applicator head, wherein the drive member, the spray member, and the applicator head are mounted to the connecting member, and the drive member is configured to move relative to the connecting member to drive the spray member to spray liquid. The application method comprises: controlling the drive member to move and drive the spray member to move; spraying the liquid through the spray member; and controlling the applicator head to move for an application operation.

Abstract: An optical module includes: one or more optical ports, configured to receive an uplink optical signal or transmit a downlink optical signal; a downlink, configured to apply a downlink radio frequency signal converted by a radio frequency input signal to a photoelectric conversion and transmission unit; a control unit, configured to generate a downlink monitoring modulation signal applied to the photoelectric conversion and transmission unit; the photoelectric conversion and transmission unit, configured to modulate the downlink radio frequency signal and the downlink monitoring modulation signal onto a downlink optical signal, and the downlink optical signal is expanded into downlink split optical signals, and the downlink split optical signals are respectively provided to the one or more optical ports via one or more optical fibers; and an uplink, configured to convert an uplink optical signal into a radio frequency output signal.

Abstract: The present disclosure relates to a quick-install structure for an electrical device, including a base and a module. The base is provided with at least two gripping slots. The module is detachably installed on the base. The module is provided with at least two gripping hooks, and the gripping hooks are in one-to-one correspondence with the gripping slots. When the gripping hooks are inserted in the gripping slots, the module has a first position and a second position relative to the base. When in the first position, the gripping books grip with the gripping slots tightly. When in the second position, the gripping hooks are detached from the tight gripping with the gripping slots. The module is switchable between the first position and the second position.

Abstract: The present disclosure relates to a quick-install structure for an electrical device, including a base and a module. The base is provided with at least two gripping slots. The module is detachably installed on the base. The module is provided with at least two gripping hooks, and the gripping hooks are in one-to-one correspondence with the gripping slots. When the gripping hooks are inserted in the gripping slots, the module has a first position and a second position relative to the base. When in the first position, the gripping books grip with the gripping slots tightly. When in the second position, the gripping hooks are detached from the tight gripping with the gripping slots. The module is switchable between the first position and the second position.