n. 下层;地下室,洞穴;表层下基岩
1.The technique shows successful and economically reasonable in prospecting for Karst caves at superterranean and subterrane construction.
表明在岩溶地区的地上、地下施工中,利用地质雷达探测溶洞的有效性,且经济合理。
2.The technique shows successful and economically reasonable in prospecting for Karst caves at superterranean and subterrane construction.
表明在岩溶地区的地上、地下施工中,利用地质雷达探测溶洞的有效性,且经济合理。