Abstract: Provided are a synchronization method and apparatus for audio and text, a device, and a medium. The method includes: determining a plurality of first text segments for audio conversion and a second text for reading display, in which the plurality of first text segments and the second text are from an initial text; converting the plurality of first text segments into audio segments, to obtain a first mapping relationship between the first text segments and the audio segments; performing matching on the first text segments and the second text, to obtain a second mapping relationship between the first text segments and second text segments in the second text; determining the second text segment synchronized with each of the audio segments based on the first mapping relationship and the second mapping relationship.

Abstract: A request processing method includes: determining, based on a request of a terminal, first network slice information of a current network slice accessed by the terminal, and acquiring second network slice information respectively corresponding to at least one subscribed network slice, the subscribed network slice being a network slice allowing access of the terminal; and determining whether there is a detection result of target second network slice information satisfying an access condition in the respective second network slice information, and controlling the current network slice based on the detection result.

Abstract: A method of preparing monopentaerythritol, dipentaerthritol, and sodium formate through high temperature condensation and cascade recrystallization is disclosed. The method lowers the energy consumption dramatically and improves the cost-effectiveness by carrying out the reaction in a non-low-temperature zone, and thereby avoiding the requirement for refrigeration. The method alleviates the difficulty of separation and improves the product quality by means of cascade separation process, and thereby avoiding the low purity from a single separation. In addition, the mother liquor obtained after each separation step is recycled to the previous step as the recycling liquor, which avoids discharging waste, increases the product yield and lowers raw materials consumption.

Abstract: A method of preparing monopentaerythritol, dipentaerthritol, and sodium formate through high temperature condensation and cascade recrystallization is disclosed. The method lowers the energy consumption dramatically and improves the cost-effectiveness by carrying out the reaction in a non-low-temperature zone, and thereby avoiding the requirement for refrigeration. The method alleviates the difficulty of separation and improves the product quality by means of cascade separation process, and thereby avoiding the low purity from a single separation. In addition, the mother liquor obtained after each separation step is recycled to the previous step as the recycling liquor, which avoids discharging waste, increases the product yield and lowers raw materials consumption.