[填空题]
Monochromatic light of wai6q,.g(k / ,ub ysxrjnvelength 653 nm falls on a su)c uu(769nj rj+ zhaof7mt:plit. If the angle between the first bright fringes on either side of the centr6 ft7muc :o9zj(n) 7rhpj+auu al maximum is 32, estimate the slit width.