Abstract: A three-stage tubular T-shaped degassing device with microbubble axial flow and spiral flow fields is provided, which is applied to quick degassing of a gas-liquid two-phase flow. The three-stage tubular T-shaped degassing device adopts a quick degassing technology combining a microbubble uniform mixed rotational axial flow field and a spiral runner conical spiral flow field with layered jet collision reversing depth degassing. A microbubble uniform mixer is configured to adjust gas-liquid two-phase flow containing big bubbles into microbubble uniform mixed axial flow. A microbubble cyclone is configured to adjust the microbubble uniform mixed axial flow into multiple strands of rotational axial flows containing microbubbles. A rotational axial flow degasser implements the horizontal type microbubble uniform mixed multiple strands rotational axial flow degassing operation to remove most microbubbles to form axial flow gas and axial flow liquid.

Abstract: The disclosure belongs to the technical field of soundproof flooring, and discloses a floor mat and a floor. The floor mat includes a floor mat body made of foamed material. At least one surface of the floor mat body is provided with a number of soundproof units with the same area. Each of the soundproof unit has at least one soundproof structure. At least one of the numbers, shapes and distribution positions of the soundproof structures are different. The floor mat of the present disclosure can play a sound absorption effect; at the same time, a plurality of chaotic sounds are dispersed and mutually offset, which effectively isolates most of the sounds and has a good soundproof effect.

Abstract: The disclosure belongs to the technical field of soundproof flooring, and discloses a floor mat and a floor. The floor mat includes a floor mat body made of foamed material. At least one surface of the floor mat body is provided with a number of soundproof units with the same area. Each of the soundproof unit has at least one soundproof structure. At least one of the numbers, shapes and distribution positions of the soundproof structures are different. The floor mat of the present disclosure can play a sound absorption effect; at the same time, a plurality of chaotic sounds are dispersed and mutually offset, which effectively isolates most of the sounds and has a good soundproof effect.

Abstract: A camera substrate assembly, a camera apparatus, and a terminal device, where the camera substrate assembly includes a rigid support plate and a printed circuit board laminated, where at least two mounting holes for accommodating camera chips are disposed on the printed circuit board, the rigid support plate has mounting surfaces facing the mounting holes respectively and are configured to support the camera chips, strength of the rigid support plate is greater than strength of the printed circuit board, and flatness of the mounting surfaces is less than a specified threshold. The mounting holes disposed on the printed circuit board and the mounting surfaces disposed on the rigid support plate are used to support cameras. This avoids impact of warpage on camera mounting when the printed circuit board and a flexible circuit board are laminated, and improves flatness after camera mounting.

Abstract: An auxiliary terminal-control apparatus, where the apparatus includes a back plate sticker, a control key embedded into the back plate sticker, a communications module, and a control module. The control module is configured to recognize a target operation on the control key, and generate, based on the target operation, a corresponding target operation instruction, where the control key includes a roll ball and/or a key, operations on the roll ball include a roll operation and a press operation, and an operation on the key includes a press operation; and the communications module is configured to establish a communication connection to a terminal device to send the target operation instruction to the terminal device, where the target operation instruction is used to operate an application program on the terminal device or trigger a service.

Abstract: This application provides an auxiliary terminal-control apparatus, where the apparatus includes a back plate sticker, a control key embedded into the back plate sticker, a communications module, and a control module. The control module is configured to recognize a target operation on the control key, and generate, based on the target operation, a corresponding target operation instruction, where the control key includes a roll ball and/or a key, operations on the roll ball include a roll operation and a press operation, and an operation on the key includes a press operation; and the communications module is configured to establish a communication connection to a terminal device to send the target operation instruction to the terminal device, where the target operation instruction is used to operate an application program on the terminal device or trigger a service.

Abstract: A camera substrate assembly, a camera apparatus, and a terminal device, where the camera substrate assembly includes a rigid support plate and a printed circuit board laminated, where at least two mounting holes for accommodating camera chips are disposed on the printed circuit board, the rigid support plate has mounting surfaces facing the mounting holes respectively and are configured to support the camera chips, strength of the rigid support plate is greater than strength of the printed circuit board, and flatness of the mounting surfaces is less than a specified threshold. The mounting holes disposed on the printed circuit board and the mounting surfaces disposed on the rigid support plate are used to support cameras. This avoids impact of warpage on camera mounting when the printed circuit board and a flexible circuit board are laminated, and improves flatness after camera mounting.