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汉语拼音：chōng fèn yòu bì yào tiáo jiàn

如果有甲必有乙，无甲则可能无乙也可能有乙，那么甲就是乙的充分条件。例如，一个人如果骄傲自满，那就必然落后；如果不骄傲自满，那就可能不落后也可能落后。因此，骄傲自满是落后的充分条件。

• That said, facial expression does not seem to be a prerequisite for such interactions.

  换言之，脸部表情似乎并不是动物社交行为的充分条件。

• By means of the qualitative theory, we obtain sufficient conditions and a necessary condition for this kind of equations.

  运用常微分方程定性理论的方法，获得了这类方程所有解有界的充分条件和必要条件。

• As the recent protests over fuel costs made clear, steady jobs and rising incomes are not the only conditions for social stability.

  正如最近针对燃油成本的抗议所显示的，稳定的就业和不断提高的收入并非社会稳定的充分条件。

• Sufficient conditions for the existence of desired controllers are proposed in terms of linear matrix inequalities.

  利用线性矩阵不等式处理方法，得到非脆弱保性能模糊控制器存在的充分条件。

• These conditions arc shown to be necessary in the case where the number of either input or output channels is one.

  对于单输入或单输出的情况，上述充分条件也是必要的。

• Even so, that will prove to be a necessary, not a sufficient, condition for a return to robust economic health.

  即便如此，这也只是让经济恢复健康元气的必要而非充分条件。

• The cost of transportation or endowment is one of all sufficient conditions for forming industry clusters.

  根据该模型，运输成本或者禀赋只是形成产业集群的所有充分条件中的其中一个；

• In this note, we obtain sufficient conditions that the set of saddle points are convex or closed in two-person zero-sum games.

  本文对两人零和对策给出了其鞍点集是凸的或闭的充分条件。

• The theories show that linear support vector classification satisfies second order sufficient condition property to a great degree.

  研究表明线性支持向量分类机问题的解在很大程度上具有二阶充分条件的性质。