rectangular or square shape as illustrated in fig3 a first compression plate 11 and a second compression plate 12 are inside the washing tub 10 the first compression plate 11 may be on near or adjacent to a first inner wall 10 a of the washing tub 10 and has a first hydraulic cylinder 13 and a second hydraulic cylinder 14 the second compression plate 12 is on near or adjacent to a second inner wall 10 b of the washing tub 10 and has a third hydraulic cylinder 15 and a fourth hydraulic cylinder 16 according to some embodiments the washing machine may have other numbers of cylinders e g 1 3 etc compressing and retracting each of the compression plates 11 and 12 the first compression plate 11 may be pressed toward the second inner wall 10 b of the washing tub 10 by the first hydraulic cylinder 13 and the second hydraulic cylinder 14 and the second compression plate 12 may be pressed toward the first inner wall 10 a of the washing tub 10 by the third hydraulic cylinder 15 and the fourth cylinder 16 the laundry may be compressed between the first compression plate 11 and the second compression plate 12 so that water in the laundry may be forcibly discharged from the laundry the first compression plate 11 and the second compression plate 12 may be used in a washing cycle and a rinsing cycle as well as a drying cycle the first compression plate 11 and the second.