class cost

The problem of optimal guaranteed cost control was discussed for class singular systems with state delay.

研究了一类含有故障执行器的线性不确定切换时滞系统的可靠保成本鲁棒控制问题.

The National Tourism Administration and several ministries announced plan to open about 500 RV campgrounds this year at a cost of around 35 billion yuan ( 5.2 billion U.S. dollars), as road trips have become very popular among the middle class.

由于自驾旅行在中产阶级中很受欢迎，国家旅游局和多个部委近日宣布，计划今年耗资约350亿元（折合52亿美元），开设约500个房车营地。

First class would cost $ 8.20.

一等邮递要8.20美元.

Committed to World Class Cost Management!

致力于世界级成本管理!

When the number of categories is large, the cost to obtain the classifier with flat classification learning is expensive, and when dealing with unknown document, it is obviously inappropriate to compare the document with the whole class models.

当类别数目较多时，平面分类学习得到分类器的时间开销大，而且在对未知文档分类时，需要与全部类模型进行比较，这显然很不恰当。

It does not cost anything to use the Xalan serializer because that's the class Xalan uses internally to save HTML document.

使用Xalan序列化程序不需要任何成本，因为它是Xalan用于内部保存HTML文档的类。

But some aspects of train travel do make the cost hard to swallow: travelling second-class on a train is not always more comfortable than flying economy.

但火车旅行中的一些费用也确实让人难以接受：火车的二等车厢并非总比经济舱更舒适。

How much does it cost for economy class?

经济舱要多少钱?