天津市外国语学校教学楼建于解放初期,外檐为水刷石,多年未修。近年来进行了翻修,水刷石焕然一新。具体做法如下。用钢丝刷沿水平方向来回挠刷,操作时一手持刷柄,一手按刷背,不可按得太死,待刷石面见新后,用笤帚扫去浮尘。凹凸、阳角及不 The Tianjin Foreign Language School teaching building was built in the early days of liberation. The nephew is a brush stone and has not been repaired for many years. In recent years, renovations have been carried out and water brush stones have been renewed. The specific approach is as follows. With a wire brush to scratch the brush back and forth in the horizontal direction, a hand holding the brush handle, one hand press the brush back, not too much to die, to see the new stone after the brush, sweep dust with a dustpan. Bump, sun corner and not