But with the number of attribute increasing and the more and more complicated concept levels, the traditional method based on the set theory becomes lower and lower efficient.

但是实际应用环境中的数据属性维数非常多，属性概念层次也非常复杂，基于集合论的传统学习方法的效率变得越来越低。

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In fact, the interactions between service providers and consumers has many levels in which the concept of joint action applies.

事实上，在服务提供者和消费者双方的交互中，在很多层面上都应用了联合的概念。

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The concept of profit parity disregards that there are varying levels of value and increment in demand depending on the distribution channel.

但利润一体化的概念，忽略了分销渠道的不同会导致需求的价值水平和增长水平各异。

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He preserved the broad concept of energy levels but put in some fine structure.

他继承了波尔的广泛意义上的能级概念,但引进了一个新的结构。

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It's simply the concept that prices move back to levels they previously were trading at.

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The concept is that different portfolios with different levels of risk and expected return are offered.

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Even though there were varying levels of disagreement regarding the concept, Mr. Weiner was quick to point out that the MLBPA has been able to work with the owners on joint initiatives such as the World Baseball Classic and charitable efforts.

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