Abstract: A bed mesh combination device includes a feeding assembly movable in a first direction, two groups of welding cutter assemblies and a welding head assembly oppositely arranged in a second direction. The feeding assembly can lay a spring string on the welding cutter assembly, the welding cutter assembly includes a plurality of welding cutters extending in a third direction, the welding cutters of a same group are arranged at intervals along the first direction, the welding cutters of different groups are staggered in the first direction, the two groups of welding cutter assemblies respectively correspond to first and second welding positions of the spring string. The welding cutter assembly can push the spring string to move in the second direction and can be close to or far away from the spring string in the third direction. The welding head assembly includes an ultrasonic welding head and a first driving member.

Abstract: A chopper amplifying circuit employing a negative impedance compensation technique, including a differential input end, a first-level chopper switch, a first-level amplifying circuit, a second-level chopper switch, a second-level amplifying circuit, a negative impedance converting circuit, a negative feedback unit, an input capacitor, and a differential output end, is provided. The differential input end is connected to the first-level chopper switch. An output terminal of the first-level chopper switch is connected to the first-level amplifying circuit through the input capacitor. The first-level amplifying circuit is connected to the second-level chopper switch, which is connected to the second-level amplifying circuit. The second-level amplifying circuit is connected to the differential output end, and is also connected to a feedback input end of the first-level amplifying circuit through the negative feedback unit.

Abstract: A resource preloading method performed by at least one processor and including: loading a static resource set of a round of a game during a character selection stage of the round, the character selection stage selecting a virtual character participating in the round, and the static resource set comprising resources that are to be used in the round and that are not related to character configuration information determined during the character selection stage; and based on the loading of the static resource set being completed during the character selection stage, loading a dynamic resource set of the round during a resource loading stage of the round, the dynamic resource set comprising resources that are to be used in the round and that are related to the character configuration information.

Abstract: Example camera modules and terminal devices are provided. In one example camera module, both a first optical lens assembly and a second optical lens assembly may be configured to receive light from a photographed object. A first optical path folding element and a third optical path folding element are respectively located on two sides of a second optical path folding element. The first optical path folding element can cooperate with the second optical path folding element to perform optical path folding on light from the first optical lens assembly and focus the light on a first image sensor. The third optical path folding element can cooperate with the second optical path folding element to perform optical path folding on light from the second optical lens assembly and focus the light on a second image sensor.

Abstract: A method, apparatus, and terminal for transmitting a message in a multiplayer game, and a medium are provided, belonging to the field of human-machine interaction. The method includes: displaying a first user interface of the multiplayer game, the multiplayer game providing a virtual environment for at least two teams of virtual characters to conduct an online battle; displaying a warning transmitting control in a predetermined region on the first user interface in response to that an event associated with a virtual character in the virtual environment satisfies a warning condition, the warning transmitting control being configured to transmit a warning message corresponding to the event; and transmitting the warning message to a second terminal in response to a transmitting operation on the warning message, the first account and the second account having a teammate relationship.

Abstract: A chopper amplifying circuit employing a negative impedance compensation technique, including a differential input end, a first-level chopper switch, a first-level amplifying circuit, a second-level chopper switch, a second-level amplifying circuit, a negative impedance converting circuit, a negative feedback unit, an input capacitor, and a differential output end, is provided. The differential input end is connected to the first-level chopper switch. An output terminal of the first-level chopper switch is connected to the first-level amplifying circuit through the input capacitor. The first-level amplifying circuit is connected to the second-level chopper switch, which is connected to the second-level amplifying circuit. The second-level amplifying circuit is connected to the differential output end, and is also connected to a feedback input end of the first-level amplifying circuit through the negative feedback unit.