Abstract: A cell-cultured meat production device based on microfluidic 3D printing technology includes a printing nozzle, a printing moving system, a loading platform, a sample injection system and a base. The printing moving system is disposed on the base and is composed of a plurality of movable optical axes. The printing nozzle is disposed on a movable optical axis, the sample injection system is connected to the printing nozzle, and the printing nozzle is a micro-fluidic chip. The present invention is based on microfluidic 3D printing, where biological ink is extruded by means of a microfluidic chip to form printed fibers that, under the drive of the printing moving system, are stacked for formation to achieve single-step construction of a piece of three-dimensional tissue having tissue anisotropy, which is used for cell-cultured meat production.

Abstract: A microfluidic biomimetic fiber for cultured meat production and a preparation method therefor and use thereof are provided. The microfluidic biomimetic fiber has a shell-core structure; and an outer shell of the microfluidic biomimetic fiber is formed by cross-linking a polymer solution with cell non-adhesion, and an inner core wrapped by the outer shell is a hydrogel solution mixed with a seed cell. The present invention respectively introduces an inner phase fluid and an outer phase fluid into inner and outer phase channels of a microfluidic device, enables the two phase fluids in the channels of the microfluidic device to form a stable laminar flow structure by adjusting the flow velocities of the inner and outer phases, and extrudes same from a device outlet to obtain the biomimetic fiber.

Abstract: A medicinal xiding vial, and a dispensing apparatus and an injection apparatus thereof, comprise a reversely pressed medicinal xiding vial, a reversely pressed dispensing apparatus and a reversely pressed injection apparatus thereof, a general medicinal xiding vial, and a general injection apparatus. The reversely pressed medicinal xiding vial comprises a vial body whose inner wall is a straight cylinder. A first piston is disposed on a position close to the vial opening of the vial body. A blind hole is disposed at the center of an outer bottom surface of the first piston. The vial opening is provided with an outer edge, and a seal cap is fixed on the out edge to prevent the first piston from falling off. In combination with the dispensing apparatus and the injection apparatus thereof, the medicinal xiding vial can solve the problem of secondary pollution during medicine dispensing and injection.

Abstract: A cutting and double-face leather integrated dyeing process for Tan sheep skin, which comprises the following steps: cutting?washing with water?retanning?primary dyeing?primary color fixing?secondary dyeing?fatliquoring?secondary color fixing?bleaching?drying?a finished product. Tan sheep skin leather boards and fleeces dyed by the process of the invention have no cross color and color fading with each other, a high color fastness, and uniform dyeing; the prepared Tan sheep skin products such as clothing, etc., not only have the characteristics of a high added value and good practicability, but also can more largely increase product benefits and lower the production cost.

Abstract: The invention relates to the technical field of animal fur processing, and particularly relates to a cutting and double-face leather integrated dyeing process for Tan sheep skin, which comprises the following steps: cutting?washing with water?retanning?primary dyeing?primary colour fixing?secondary dyeing?fatliquoring?secondary colour fixing?bleaching?drying?a finished product. In the process of the invention, the third-grade Tan sheep skin which does not reach a superior quality is selected and subjected to cutting treatment and then double-face leather integrated dyeing; after the dyeing has been completed, the leather board has softness, good fullness and elongation, substantially uniform thickness, and no phenomena such as stiff board and swelling board occur; the fleece is smooth, flexible and loose and clean with complete needle velvet, and no phenomena such as serious fur shedding, oily fur and fur twisting occur.

Abstract: A medicinal xiding vial, and a dispensing apparatus and an injection apparatus thereof, comprise a reversely pressed medicinal xiding vial, a reversely pressed dispensing apparatus and a reversely pressed injection apparatus thereof, a general medicinal xiding vial, and a general injection apparatus. The reversely pressed medicinal xiding vial comprises a vial body whose inner wall is a straight cylinder. A first piston is disposed on a position close to the vial opening of the vial body. A blind hole is disposed at the center of an outer bottom surface of the first piston. The vial opening is provided with an outer edge, and a seal cap is fixed on the out edge to prevent the first piston from falling off. In combination with the dispensing apparatus and the injection apparatus thereof, the medicinal xiding vial can solve the problem of secondary pollution during medicine dispensing and injection.