查询词典 frequent-flier

Ciphers are undiscoverable in proportion as their changes are frequent and as the messages in each change are brief.

密码更换越频繁，且每次更换时信息越简短，密码就越不会被破译。

The stock market fierce and the frequent undulation is deciding stock market's investment risk.

股票市场剧烈而频繁的波动决定着股票市场的投资风险。

The algorithm first takes count of the browse number of each access sequence by overlapping operation,then unites and deletes the unfrequent page items according to minimum support degree given by users,afterwards sifts getting the intersections of each two user access pattern and gives birth to candidate grequent access patterns,at last,adds up the number of each candidate frequent access pattern by scanning the original database.

该算法首先对用户项集进行重叠操作统计浏览次数，然后合并，依据用户给出的最小支持度删除原项集中的非频繁页面元素，并对两两用户项集筛选生成候选频繁项集，最后扫描数据库，统计各个候选频繁项集的支持度计数。

Writing assignments are frequent, but short: the first 1-2 pp. paper is ungraded, and is followed by three essays of 4-5 pp.

虽然本课程要求数篇书面报告，但篇幅都很短：第一篇报告只须一两页，不予评分，之后的三篇报告须四至五页(每篇各占20%)。

The supersets and union sets of the non-frequent itemsets can be used to reduce transactions of database in this method. Its aim is to improve the efficiency of mining association rules.

该算法利用每趟挖掘中一些非频繁项集的超集合、并集，逐步约简事务数据库中的事务，提高了关联规则的挖掘效率。

Unionization has helped the working class, but a rapidly changing economy and frequent periods of high unem- ployment make it difficult for most of its members to be able to increase their savings greatly.

组织化对劳工阶层已有了很多帮助，但迅速变化的经济状况和频繁出现的高失业期对许多工人来讲很难大幅度提高他们的收入。

Unionization has helped the working class, but a rapidly changing economy and frequent periods of high unemployment make it difficult for most of its members to be able to increase their savings greatly.

工会帮助工人阶级，但是变化迅速的经济形式和频繁的失业周期，使得工会的大部分会员大量增加储蓄很困难。

Currently,the management of inflation expectations has already become a frequent term of government documents, which of course is not unprovoked.

当前，管理通胀预期已成为政府文件中的频繁用语，这自然不是无缘故的。

The incidence of unrecognized esophageal intubationis frequent and is associated with a high mortality rate.

未被认识到误入食道的插管是常见的，且与高死亡率相关。

Frequent fluctuations of price and unreliability in supply.

价格经常的价格波动和供应的不稳定。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。