The songs of the Dong people in Liudong feature mixed beats in structure .
其山歌则是由散拍子构成的五句式结构;
Oil bearing evaluation of low salinity water shaly sand reservoirs in the Liudong area is a difficult problem in log interpretation .
柳东地区低矿化度地层水储层的含油性评价是测井解释的一大难题。