Abstract: An adaptor includes a male adaptor support; an adaptor plate arranged on the male adaptor support; a conductive ring arranged on the adaptor plate; and an adaptor joint, the adaptor joint and the adaptor plate separately arranged at two ends of the male adaptor support, the conductive ring electrically connected with the adaptor joint.

Abstract: An adaptor includes a male adaptor support; an adaptor plate arranged on the male adaptor support; a conductive ring arranged on the adaptor plate; and an adaptor joint, the adaptor joint and the adaptor plate separately arranged at two ends of the male adaptor support, the conductive ring electrically connected with the adaptor joint.

Abstract: An electronic connector is disclosed in the present disclosure. The electronic connector includes: a male connector; a female connector comprising: a shell; a supporting element received in the shell, and including an insertion opening and a receptacle space communicated with the insertion opening; a magnetic element received in the shell and surrounding the supporting element; a first terminal assembly and a second terminal assembly corresponding to the first terminal assembly received in the supporting element, wherein, the first terminal assembly including a plurality of first terminals, and the second terminal assembly including a plurality of second terminals, each of the first terminal extending into the receptacle space, and each of the second terminal extending into the receptacle space, and the first terminal and the corresponding second terminal forming a clamp for clamping the male connector which is inserted into receptacle space via the insertion opening.

Abstract: A method for obtaining a sequoyitol-containing extract from a plant of genus Nephrolepis, comprising extracting with a solvent, recovering the solvent to give an extractum, subjecting the extractum to two-phase extraction and column chromatography, collecting the fractions containing sequoyitol, concentrating, filtration and drying. The main active ingredient of the extract obtained is sequoyitol, which can be used for treating diabetes and its complications.

Abstract: The method for obtaining a sequoyitol-containing extract from a plant of the genus of Trifolium, Leguminosae or Ginkgoaceae, an extract obtained by the method and the use of the extract for the preparation of medicaments for treating diabetes and its complications, the method comprises the steps of extracting with a solvent, recovering the solvents to give an extractum, subjecting the extractum to two-phase extraction and column chromatography, collecting the fractions containing sequoyitol, concentrating, filtration and drying.