你是说经历伙伴之爱是必要但不充分条件。
其次，给出了解爆破的充分条件；
Second, the sufficient conditions of blow up of the solution are given.
并给出了判定稳定性的充分条件。
As a result, a sufficient condition is obtained for the stability test.
给出了等时中心的一个新的充分条件。
We also introduce a new sufficient condition of the isochronous center.
阳光是玫瑰开花的必要条件还是充分条件？
Is sunlight a necessary or sufficient condition for the roses to bloom?
本文同时给出了充分条件的一个新的证明。
给出这种解在有限时间内熄灭的一个充分条件。
A sufficient condition of the extinction of the solution is given.
专业是就业的一个必要条件，不算是充分条件。
Professional employment is a necessary condition, not a sufficient condition.
优化问题的二阶充分条件是研究灵敏度分析的基础。
A second-order-sufficient-condition is one of basis for sensitivity analysis of optimization problems.
然而，对于它的成功来说，这是一个必要条件，但不是充分条件。
Yet that is a necessary but not sufficient condition for its success.
就成为大学生而言，年满20岁是必要条件还是充分条件？
Is being 20 years old a necessary or sufficient condition for being a college student?
就成为大学生而言，年满20岁是必要条件还是充分条件？
Is being 20 years old a necessary or sufficient condition for being a college student?
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