基於逻辑的数据语言
LDL
n : a lipoprotein that transports cholesterol in the blood;
composed of moderate amount of protein and a large amount
of cholesterol; high levels are thought to be associated
with increased risk of coronary heart disease and
atherosclerosis [syn: {low-density lipoprotein}, {beta-lipoprotein}]
LDL
["LDL: A Logic-Based Data-Language", S. Tsur et al, Proc VLDB
1986, Kyoto Japan, Aug 1986, pp.33-41].