Task: Translation
Input (Czech): Za° zen  sest v  z uzav°en ho kontejneru (1), jeho  dutina je vypln na n lo   (2), kter² je tvo°en bo n mi st nami (5) a dv ma protilehl²mi  eln mi st nami.  eln  st ny jsou tvo°eny kryc mi deskami (3, 4) posunuj c mi se ve sm ru v podstat  kolm m na jejich povrch za p soben  plynn²ch zplodin p°i v²buchu n lo e (2). Bo n  st ny (5) jsou vytvo°eny jako v cevrstv , minim ln  t° vrstv . Pom r akustick²ch pevnost  materi l  sousedn ch vrstev (6, 7, 8, 9) bo n ch st n (5)  in  minim ln  2. Tlou  ka ka d  vrstvy  (6, 7, 8, 9)  in  0,0005 a  0,4 vzd lenosti mezi kryc mi deskami (3, 4). V t° vrstv m proveden  jsou bo n  st ny (5) vytvo°eny jako lemovky (13, 14) kryc ch desek (3, 4). Mezera mezi lemovkami (13, 14) je vypln na nekovov²m materi lem (15) a jedna z lemovek (13, 14) je v dotyku s n lo    (2), kter  je vytvo°ena z v²bu niny a inertn ho pojiva. Pom r hmoty v²bu niny a inertn ho pojiva je minim ln  4:1.\
Output (English): In the present invention there is disclosed a device consisting of an enclosed container (1) the cavity of which is filled with an explosive charge (2). The container is formed by sidewalls (5) and two opposite end walls. The end walls are formed by cover plates (3, 4) slidable in the direction being substantially perpendicular to their surface by the action of gaseous products when the      explosive charge (2) explodes. The sidewalls are formed as multilayer wall consisting of at least three layers. Ratio of the acoustic impedances of the materials in contiguous layers (6, 7, 8, and 9) of the sidewalls (5) is not less than 2. Thickness of each layer (6, 7, 8, and 9) is 0.0005 to 0.4 multiple of the spacing between the cover plates (3, 4). In three-layer modification, said sidewalls (5) are formed as borders (13, 14) of the cover plates (3, 4). The gap extending between the borders (13, 14) is filled up with non-metallic material (15) and one of the borders (13, 14) is in contact with the explosive charge (2) that is made of an explosive and an inert binding agent. Ratio of the explosive mass to the inert binding agent is at least 4:1.