Abstract: A method for preparing acetic acid by catalyst including the following steps is provided, S1. preparing the hydrotalcite carrier by hydrothermal method; S2. ion exchange; S3. liquid phase reduction; S4. placing the CoPd/LDH catalyst obtained in S3 in a two-channel fixed bed step-by-step continuous reactor, carrying out the reaction at 100-400° C. and 0.1-20 MPa, synthesizing acetic acid by alternating feeding of CH4+H2+H2O and CO2+H2+H2O, with the alternating time of 50-300 s. The present invention replaces the traditional process of acetic acid production including the steps of methane and carbon dioxide reforming to produce syngas. The process flow is short, the reaction conditions are mild, and the energy consumption and cost are greatly reduced.

Abstract: The present disclosure provides a bullet-screen comment display method, a bullet-screen comment display apparatus, an electronic device, and a computer storage medium, and relates to the technical field of human-computer interaction. The method includes: obtaining a number of bullet-screen comments corresponding to a display page of a current display interface; determining, based on the number of the bullet-screen comments, a bullet-screen comment number value to be displayed on the current display interface; displaying the bullet-screen comment number value in the current display interface; and displaying, in response to a bullet-screen comment display operation by a user for the display page, the bullet-screen comments of the display page.

Abstract: The present disclosure provides a bullet-screen comment display method, a bullet-screen comment display apparatus, an electronic device, and a computer storage medium, and relates to the technical field of human-computer interaction. The method includes: obtaining a number of bullet-screen comments corresponding to a display page of a current display interface; determining, based on the number of the bullet-screen comments, a bullet-screen comment number value to be displayed on the current display interface; displaying the bullet-screen comment number value in the current display interface; and displaying, in response to a bullet-screen comment display operation by a user for the display page, the bullet-screen comments of the display page.