There is special requirement to the testing technology for lining structure due to its specific characteristics. 由于地下工程衬砌结构的特殊性，对检测技术具有一定的要求。
Therefore, mod-ern machine tools must be adaptable to the specific characteristics of the materials to be pro-cessed. 因此，现代化的机床必须能适应被加工材料的特殊性能，并尽可能做到安全和经济地进行加工。
