Abstract: A GNSS emergency monitoring error suppression method for an alpine canyon complex environment is provided. Through three steps of GNSS optimization design of the alpine canyon complex environment, derived error suppression of emergency monitoring criteria in the alpine canyon complex environment, and error suppression measurement and result correction, GNSS measurement errors in the alpine canyons can be effectively suppressed. Through improving measurement accuracy, GNSS technology can be widely applied to the alpine canyons, outstanding advantages of high efficiency and high accuracy in a coordinate transmission process of the GNSS technology are brought into full play, and a cost is effectively reduced. Meanwhile, by processing the errors of the emergency monitoring criteria, it is possible to protect workers from on-site operation risks.

Abstract: The present disclosure relates to a control method of a virtual object, a control apparatus, a device and a medium. The method displays a target virtual scene in a target interactive interface, under the condition that there is a target virtual object in the plurality of virtual objects, displays a target control, the target virtual object being a virtual object controllable by the virtual subject in a non-contact manner; in response to receiving a trigger operation on the target control, causes the virtual subject to perform non-contact control on the target virtual object according to a control mode corresponding to the target control, wherein the target virtual scene includes a plurality of virtual objects and a virtual subject controlled by a user.

Abstract: A method for manufacturing a biomass molded floor includes steps of: (1) preparing a PVC (polyvinyl chloride) board and a wood-plastic board, wherein a density of the wood-plastic board is in a range of 0.87-0.90 g/cm3; (2) coating an upper surface of the wood-plastic board with an adhesive, bonding the wood-plastic board with the PVC board, wherein an area of the wood-plastic board is in a range of 1000 mm×1200 mm-1000 mm×1800 mm; and (3) performing molding after bonding, wherein parameters of the molding are: temperature in a range of 35-40° C., pressure in a range of 10-12 MPa, time in a range of 50-60 s.

Abstract: A fireproof and waterproof biomass floor and a manufacturing method therefor. The floor comprises, in parts by weight, 80-95 parts of a wood fiber, 5-20 parts of an additive, and 0-1 part of a pigment. The additive comprises the following raw material components in percentage by weight: a metal oxide: 10-20 wt %; a hydrochloride: 10-20 wt %; a non-metal oxide: 5-10 wt %; a weak acid: 5-10 wt %; a sulfate: 1-2 wt %; a phosphate: 1-2 wt %; and water: 36-68 wt %. The manufacturing method comprises: mixing the wood fiber, the additive, and the pigment; flatly laying the obtained mixture on a base plate; performing die pressing, and standing for 3-10 days; performing demolding; subjecting the obtained demolded plate to edge cutting, drying, sanding, assembling, hot pressing, cutting, curing, slotting, and silent pad pasting on the back face. The floor has the advantages of being fireproof, ultralow in water absorption thickness expansion rate, and ultralow in formaldehyde release amount.

Abstract: A method for manufacturing a biomass molded floor includes steps of: (1) preparing a PVC (polyvinyl chloride) board and a wood-plastic board, wherein a density of the wood-plastic board is in a range of 0.87-0.90 g/cm3; (2) coating an upper surface of the wood-plastic board with an adhesive, bonding the wood-plastic board with the PVC board, wherein an area of the wood-plastic board is in a range of 1000 mm×1200 mm-1000 mm×1800 mm; and (3) performing molding after bonding, wherein parameters of the molding are: temperature in a range of 35-40° C., pressure in a range of 10-12 MPa, time in a range of 50-60 s.

Abstract: A PVC rigid substrate, a preparation method therefor and a PVC rigid composite plate, wherein the PVC rigid substrate comprises the following raw materials in parts by weight: 40-50 parts of PVC, 75-150 parts of calcium carbonate, 0.6-1.0 parts of balance lubricant, 3.0-5.0 parts of stabilizer and 10-20 parts of CPVC. The PVC substrate has a high hardness, a very small heating size change rate which can be less than or equal to 0.05%. The impact resistance and toughness of a product may be greatly improved to facilitate the treatments that follow. Second, the PVC rigid composite plate has a high mechanical strength and a long service life; at the same time, the PVC rigid substrate can be prepared by using an extrusion method, which is very simple and easy to implement.

Abstract: A PVC rigid substrate, a preparation method therefor and a PVC rigid composite plate, wherein the PVC rigid substrate comprises the following raw materials in parts by weight: 40-50 parts of PVC, 75-150 parts of calcium carbonate, 0.6-1.0 parts of balance lubricant, 3.0-5.0 parts of stabilizer and 10-20 parts of CPVC. The PVC substrate has a high hardness, a very small heating size change rate which can be less than or equal to 0.05%. The impact resistance and toughness of a product may be greatly improved to facilitate the treatments that follow. Second, the PVC rigid composite plate has a high mechanical strength and a long service life; at the same time, the PVC rigid substrate can be prepared by using an extrusion method, which is very simple and easy to implement.