Abstract: Embodiments of the present invention relates to a prompt method and apparatus based on document sharing, a device, and a medium. The method comprises: receiving a display trigger operation of displaying a first document in a browser; sending attribute information of the first document to a server, the server being used for comparing the attribute information of the first document with attribute information of a second document, and sending preset prompt information to the browser when determining, according to a comparison result, that a prompt condition is satisfied, and the second document being a shared document that is actively shared by a meeting client in a real-time meeting interface; and receiving the preset prompt information, and displaying the preset prompt information while displaying the first document in the browser.

Abstract: Disclosed in the present application are a concrete protection material, and a preparation method and a construction method therefor. The concrete protection material consists of 50%-90% of a component A and 10%-50% of a component B in percentage by weight, where the component A is prepared from 30%-65% of organic silicon, 2%-5% of nano-silicon dioxide and the balance of an organic solvent in percentage by weight; and the component B is prepared from 20%-50% of an organic base and the balance of water in percentage by weight. The present application not only can form nano-particles having a strengthening effect in capillary channels of a concrete surface layer, but also can achieve a technical effect of superhydrophobicity on the concrete surface layer.

Abstract: A half-bridge power device includes a module substrate, the upper surface of which includes a first half-bridge area, a second half-bridge area, a first half-bridge lead-out area, and a second half-bridge lead-out area, which are separate, the first and second half-bridge lead-out areas being located at the ends of the module substrate. The first and second half-bridge power chips are connected to the first half-bridge area and the second half-bridge area, respectively. The first, second, and third power connector terminals are connected to the first and second half-bridge areas, and the first and second half-bridge power chips to form a power loop.

Abstract: The present invention relates to the technical field of automation apparatuses, in particular, to a tilting-pan typed sorting machine, including a frame body, a code reading device, an unloading device, a reset track, and a sorting sliding slot, where an operation track is disposed on the frame body; the code reading device is disposed above the operation track; the unloading device is disposed below the operation track; the reset track is disposed below the operation track; several tilting-pan trolleys are disposed on the operation track; a side of the operation track is further provided with a linear motor; and the sorting sliding slot is disposed at two sides of the unloading device of the operation track.

Abstract: The present invention relates to the technical field of automation apparatuses, in particular, to a sorting machine trolley tilting-pan mechanism. A tilting-pan seat, a right seat plate, and a left seat plate are disposed on a rack; the right seat plate and the left seat plate are disposed at two sides of the tilting-pan seat; two short connection rods are movably hinged on the tilting-pan seat; a sliding seat is disposed on both the right seat plate and the left seat plate; a lifting rod is disposed in the middle of the sliding seat; two buffers are further disposed on the sliding seat; the buffers are distributed at two sides of the lifting rod. A tray-typed carrying structure is adopted, so that light and round commodities that are not adaptive for the cross-belt sorting machine to sort can be normally sorted, sorting adaptability is extremely strong, performance is stable.