Abstract: Provided is a method and system for coalbed permeability-enhancement induced by pressure-relief with mining an extremely thin slice, belonging to the technical field of coalbed permeability-enhancement induced by pressure-relief. The method includes arranging a boundary gateway and a boundary roadway along a mine field boundary, constructing a row of boreholes into the coal seam to run through a conventional development roadway and the boundary roadway, and arranging devices in the conventional development roadway, the boundary roadway, and the row of boreholes to cut the extremely thin stratified coal seam between boreholes, thus creating a mining space in the coal seam, which causes a deformation failure of the coal around the boreholes.

Abstract: A welding foot portion of an conductor structure is welded with a circuit board; a back bending structure and a bending structure which are connected to each other are formed at a middle bending portion of the conductor structure; a first interference area and a second interference area are provided; a sliding insertion portion of the conductor structure is configured to be connected to a plug conductor of a plug connector; the back bending structure and the bending structure of the conductor structure are configured to be exposed between a socket lower shell and a socket upper shell in a floating mode when the first interference area is in close contact with the socket lower shell and the second interference area is in close contract with the socket upper shell.

Abstract: The present application relates to a floating connection conductor, a floating electric connector and a vehicle-mounted electronic device. The floating connection conductor comprises a welding part, a base-fixed part, a suspended floating part, a floating-fixed part and a contact part, wherein the base-fixed part is fixed to a base body; the floating-fixed part is fixed to a floating body, and the contact part is in conduction with and abuts against a plug connector; and the suspended floating part is located between the base-fixed part and the floating-fixed part and is bent to form a suspended section.