Web search engine is one of the applications of web mining technologies.Web挖掘技术的应用之一就是Web搜索引擎.Convex analysis, Lagrangian relaxation, non differentiable optimization, and applications in integer programming.凸分析 、 拉格朗日松弛法...
The vibrating centrifugal dehydrator and scraper discharge centrifugal dehydrator are usually used in coal mine industry.振动离心脱水机与刮刀卸料离心脱水机是煤矿常用的两种离心脱水机.If a vibrating string is lightly touched at its midpoint , its pitch...
Geneticists in Canada have discovered a clue to the puzzle of why our cells get old and die...加拿大的遗传学家已经发现了解开细胞衰老、死亡之谜的线索。Geneticists only recently discovered the identity of the gene that causes it.基因学家最近才发现了造成这一现象的基因特征...