Abstract: The invention provides a carbon dioxide-based polyurethane elastomer with damping and anti-fatigue aging properties and its preparation method. It is obtained from Component A and Component B; Component A includes: PTMG-1000 45˜60 parts, carbon dioxide-based polyol 25˜30 parts, poly-DOPO-ITA-pentanediol ester 10˜20 parts, BDO 3˜5 parts, water 0.3˜0.5 parts, N-methylimidazole 0.5˜0.8 parts, bis(2-dimethylaminoethyl) ether 0.1˜0.2 parts, needle-shaped nano-titanium dioxide 0.5 parts, hindered phenol 0.2˜0.5 parts, dibutyltin dilaurate 0.1˜0.3 parts, strontium chloride 0.005˜0.01 parts, rhodium chloride 0.02˜0.03 parts, foaming agent 0.2˜0.5 parts; Component B includes: carbon dioxide-based polyol 50˜55 parts, MDI-50 45˜50 parts, organic zinc 0.01˜0.02 parts, organic bismuth 0.01˜0.02 parts.

Abstract: The application provides an inertial navigation initial alignment method, apparatus and device applicable to inclination measurement. The method includes: acquiring a first specific force vector of an inertial navigation system of a receiver in a body coordinate system, and Doppler velocity information and position information; determining a second specific force vector of the inertial navigation system of the receiver in a navigation coordinate system; determining a first projection of the first specific force vector in an initial moment body inertial frame, and determining a second projection of the second specific force vector in an initial moment navigation inertial frame; performing time integration on the first projection and the second projection respectively to obtain first projection integration velocities and second projection integration velocities; and determining a first relative relationship of the body coordinate system with respect to the navigation coordinate system.

Abstract: A method for inserting slides in a document is disclosed in the present invention. Whether the file selected to be inserted is a slide file; if the file is the slide file, a file type of the slide file is set. A file name, a file path, the file type and a file label array are extracted and stored in a memory, wherein, the file label array records orderly labels of chosen slides in the slide file. A slide object according to the file name, the file path, the file type and the labels in the file label array is constructed and inserted at a cursor position in the document. Additionally, a method for broadcasting slides is disclosed. The present invention realizes that the slide content is broadcast directly, and also realizes the broadcast characteristics such as animation and sound effect and so on. The operation is simple, time is saved, and work efficiency of users is improved.