Abstract: The present disclosure discloses a degassing-free underwater dissolved carbon dioxide detection device and a detection method. The degassing-free underwater dissolved carbon dioxide detection device includes a computer, which is used to provide the driving signal and controlling parameters for the power tuning unit; the computer is connected with a laser driving control module and the power tuning unit, respectively; the laser driving control module is connected with a laser; the laser is connected with a photo-isolator; the photo-isolator is connected with a thulium-doped fiber vertical-cavity laser system; the thulium-doped fiber vertical-cavity laser system is connected with a photoacoustic cell system through a fiber collimator; the photoacoustic cell system is connected with a pre-amplifier circuit and a lock-in amplifier in sequence, and the lock-in amplifier is connected with the computer.

Abstract: The present disclosure discloses a degassing-free underwater dissolved carbon dioxide detection device and a detection method. The degassing-free underwater dissolved carbon dioxide detection device includes a computer, which is used to provide the driving signal and controlling parameters for the power tuning unit; the computer is connected with a laser driving control module and the power tuning unit, respectively; the laser driving control module is connected with a laser; the laser is connected with a photo-isolator; the photo-isolator is connected with a thulium-doped fiber vertical-cavity laser system; the thulium-doped fiber vertical-cavity laser system is connected with a photoacoustic cell system through a fiber collimator; the photoacoustic cell system is connected with a pre-amplifier circuit and a lock-in amplifier in sequence, and the lock-in amplifier is connected with the computer.

Abstract: An interaction method and an interaction apparatus are provided. The first terminal device transmits the interface information to the second terminal device in response to the message confirming that the first terminal device is connected with the second terminal device. The interface information is used for generating the interaction interface by the second terminal device. The first terminal device acquires the operation instruction from the second terminal device, and executes the operation instruction to obtain the operation result. The operation instruction is the instruction for operating the interaction interface. The first terminal device generates the update instruction based on the operation result and transmits the update instruction to the second terminal device. The update instruction is used for updating the interaction interface by the second terminal device.

Abstract: A method, apparatus and device for displaying windows in a split-screen manner are provided, which are applied to an intelligent terminal. The intelligent terminal is connected to the large-screen display, and the large-screen display displays the multiple windows. The intelligent terminal receives, in real time, the touch-point position information sent by the large-screen display, where the touch-point position information is acquired by the large-screen display when the operation which drags the at least two windows is detected, and there is a touch point in the preset dragging region of each of the at least two windows. In a case that the intelligent terminal determines that the touch-point position information meets the preset position condition and receives the touch-point disappearing information sent by the large-screen display, the intelligent terminal controls the at least two windows to be displayed in the split-screen manner.

Abstract: An interaction method and an interaction apparatus are provided. The first terminal device transmits the interface information to the second terminal device in response to the message confirming that the first terminal device is connected with the second terminal device. The interface information is used for generating the interaction interface by the second terminal device. The first terminal device acquires the operation instruction from the second terminal device, and executes the operation instruction to obtain the operation result. The operation instruction is the instruction for operating the interaction interface. The first terminal device generates the update instruction based on the operation result and transmits the update instruction to the second terminal device. The update instruction is used for updating the interaction interface by the second terminal device.

Abstract: A method, apparatus and device for displaying windows in a split-screen manner are provided, which are applied to an intelligent terminal. The intelligent terminal is connected to the large-screen display, and the large-screen display displays the multiple windows. The intelligent terminal receives, in real time, the touch-point position information sent by the large-screen display, where the touch-point position information is acquired by the large-screen display when the operation which drags the at least two windows is detected, and there is a touch point in the preset dragging region of each of the at least two windows. In a case that the intelligent terminal determines that the touch-point position information meets the preset position condition and receives the touch-point disappearing information sent by the large-screen display, the intelligent terminal controls the at least two windows to be displayed in the split-screen manner.