neutral detergent method

The method is achieved by improving and synthesizing the neutral detergent method and the sulphuric acid hydrolysis method.

本法是将中性洗涤剂法与硫酸水解法加以改进、综合而成。

Cleaning method is usually use first high-power aspiration and brush to clean the area, then use neutral detergent emphatically dirt, thorough cleaning again finally.

清洁方法通常是先用大功率吸尘管和刷子进行大面积的清洁，然后用中性的洗涤液着重清洁污垢，最后再进行全面清洁。

Cleaning method of roof is usually first with high-power vacuum cleaner and brush to clean the area, then use neutral detergent on cleaning dirt place, then a comprehensive clean.

顶棚的清洁方法通常是先用大功率吸尘器和刷子进行大面积的清洁，然后用中性的洗涤液着重清洁污垢集中的地方，最后再全面的清洁一次。