| 摘要 |
<p>The brush head has in the longitudinal direction at least one group of transverse rows of bristle tufts (4) perpendicular to the bristle support (3) and set alongside a pair of transverse rows of bristle tufts (5,6) set inclined to the bristle support in the longitudinal direction of the brush head. The longitudinally inclined bristle tufts (6) of one of these rows is inclined forwards and the bristle tufts of the other of these rows is inclined backwards so that the two tufts (5,6) of these two rows cross one another to form in pairs an X-shape arrangement.</p> |
