1.
    发明专利
    未知

    公开(公告)号:DE3125108A1

    公开(公告)日:1983-01-13

    申请号:DE3125108

    申请日:1981-06-26

    Applicant: BASF AG

    Abstract: The horizontal orientation of a rocket moving in a liquid is achieved by an arrangement in which a magnet is attached to the rocket body. The axis of the rocket and the magnetic axis of the magnet form an azimuthal angle alpha , which determines the direction of the rocket relative to the geomagnetic meridian.

    6.
    发明专利
    未知

    公开(公告)号:DE3108425A1

    公开(公告)日:1982-09-23

    申请号:DE3108425

    申请日:1981-03-06

    Applicant: BASF AG

    Abstract: A process for gaining access to the coal of very deep seams, and for extracting this coal with the aid of a conveying liquid, which is fed to the seams via boreholes and is thence brought back again to the surface with coal which has been detached, wherein agents for detaching and breaking up the coal are admixed to the liquid.

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