帮忙翻译啊~~~~~~

China and the United States from the first experts to collect information, investigate, assess the value of the murals of the status quo and start to take chemistry, physics, earth science and other disciplines combine to cause disease murals and the formation of the mechanism and its related geological and hydro-air environment , To conduct a comprehensive study. Analysis of the experts believe that the disease caused by murals of the most active factor is water, water sources are mainly in three areas: First, precipitation and humidity of the air inside the cave caused by the sharp rise, and the other is precipitation or rocks along the fracture to the weak layer In infiltration Caves, Cave is the third former garden watering to the cave water infiltration. In addition, the murals to battle a serious crisp base layer, layer paint murals off, and they contain high levels of salt, changes in the relative humidity under the influence of expansion and contraction caused by the damage.