decameter英美n. 十米(公尺); 缩写词为dam英英释义nouna metric unit of length equal to ten metersSynonym:dekameterdecametredekametredamdkm双语例句Along with mining depth becoming deep at a speed of decameter per year average, the coal mining industry is developing rapidly in our country.随着我国采矿业的发展,煤矿的开采深度平均以每年10m的速度增加。