Abstract: The present application discloses a clamping component, it includes a first pressing block provided with a first perforation hole and a first clamping slot, a second pressing block provided with a second perforation hole and a second clamping slot, a fastener assembly and an elastic part. The clamping component may quickly clamp a guide rail and is suitable for different specifications of the guide rail, and the universality is high. The present application discloses a guide rail racking, including a fixing frame and the above clamping component mounted on the fixing frame. The guide rail racking is beneficial to rapid installation of the guide rail, time-saving and labor-saving. The present application discloses a solar panel racking assembly, including the above guide rail racking and a guide rail mounted on the guide rail racking. The solar panel racking assembly may be quickly assembled on site, and it is time-saving and labor-saving.

Abstract: Disclosed is a rail fixing assembly, configured to fix a rail formed by connecting rail blocks, and including a base, pressing blocks, a movable clamping block and a fixing part; an installation groove is formed in the base, the pressing block is disposed above the base, an installation hole is formed in the pressing block, the lower end of the movable clamping block is inserted into the installation groove after passing through the installation hole and may move or rotate in the installation groove; the rail block is installed at the upper end of the movable clamping block, the movable clamping block moves or rotates in the installation groove to realize displacement or angle adjustment, the side wall of the rail block abuts against the pressing block. The application is convenient for fine adjustment during rail installation, so as to enable the installation more convenient and improve the installation efficiency.

Abstract: The present application discloses a clamping component, it includes a first pressing block provided with a first perforation hole and a first clamping slot, a second pressing block provided with a second perforation hole and a second clamping slot, a fastener assembly and an elastic part. The clamping component may quickly clamp a guide rail and is suitable for different specifications of the guide rail, and the universality is high. The present application discloses a guide rail racking, including a fixing frame and the above clamping component mounted on the fixing frame. The guide rail racking is beneficial to rapid installation of the guide rail, time-saving and labor-saving. The present application discloses a solar panel racking assembly, including the above guide rail racking and a guide rail mounted on the guide rail racking. The solar panel racking assembly may be quickly assembled on site, and it is time-saving and labor-saving.

Abstract: A cDNA encoding the cysteine proteinase inhibitor cystatin has been isolated from trout. The encoded cystatin protein is useful to inhibit cysteine proteinases in food processing, for example in the production of surimi. The full-length cystatin cDNA clone comprises 674 base pairs and encodes a protein of 132 amino acid residues, which is processed to a mature protein of 111 amino acids.