Abstract: Embodiments of the present disclosure relate to a video processing method and apparatus, a device, and a medium. The method includes: obtaining a reference editing operation sequence specified by a user, where the reference editing operation sequence includes at least one reference editing operation arranged in a sequential order of operations; and providing operation prompts according to the sequential order of the reference editing operations, to direct the user to perform the reference editing operations on a target video step by step, where each reference editing operation in the reference editing operation sequence has a corresponding operation prompt.

Abstract: The present disclosure provides an ultra-high temperature resistant cement slurry system for cementing and the preparation method and use thereof. The cement slurry system comprises cement, an ultra-high temperature strength stabilizer, an ultra-high temperature reinforcing material, a density regulator, an ultra-high temperature suspension stabilizer, a dispersant, a fluid loss additive, a retarder, a defoaming agent and water, wherein the ultra-high temperature suspension stabilizer comprises an ether-based starch, an aluminosilicate and a polyalcohol polymer. The method for preparing the cement slurry system includes dry mixing and wet mixing raw materials homogeneously, respectively, and then homogeneously mixing the dry mix and wet mix to obtain the cement slurry system. The present disclosure further provides use of the cement slurry system for cementing in deep wells and ultra-deep wells at high and ultra-high temperatures.

Abstract: Some embodiments of this application disclose a battery and an electrical device. The battery includes: a battery cell, where a pressure relief mechanism is disposed on a first wall of the battery cell; and a protection plate, where the protection plate is disposed opposite to the pressure relief mechanism. The protection plate is a polymer-based composite fiberboard. The technical solution provided in this application can protect a box of the battery from airflow impact and high-temperature melting arising from thermal runaway of the battery, thereby enhancing safety performance of the battery.

Abstract: A parser for parsing a text-coded protocol includes: a parsing rule storage module, configured to store a parsing rule for parsing a packet of the text-coded protocol; and a packet parsing module, implemented by a logic chip, configured to parse the packet according to the parsing rule stored in the parsing rule storage module, and output a parsing result. Compared with software-based parsers, the hardware-based parser provided by embodiments of the present invention improves parsing efficiency and reduces cost of the parser. In addition, the parser provided by embodiments of the present invention has a better generality.

Abstract: A method and an apparatus for string pattern matching and parsing based on ABNF syntax. The method includes: defining an instruction set suitable for describing a string pattern rule; designing a compiler capable of translating the protocol rule described in ABNF syntax into a protocol rule described with the instruction set and an object code; designing a hardware parser according to the characteristics of the instruction set, the parser comprising a module implemented by a special hardware for supporting the corresponding instruction, thereby realizing string pattern matching and parsing.

Abstract: A parser for parsing a text-coded protocol includes: a parsing rule storage module, configured to store a parsing rule for parsing a packet of the text-coded protocol; and a packet parsing module, implemented by a logic chip, configured to parse the packet according to the parsing rule stored in the parsing rule storage module, and output a parsing result. Compared with software-based parsers, the hardware-based parser provided by embodiments of the present invention improves parsing efficiency and reduces cost of the parser. In addition, the parser provided by embodiments of the present invention has a better generality.