不存在的

He spent his life chasing after shadows.

他用毕生精力追求不存东西。

The prime minister spoke of the general insecurity in the country.

总理谈到了全国普遍存不安全。

Such inequalities are found in every stratum.

这类不公平现象存于社会阶层。

The opposite concepts of superior and inferior have no absolute boundary line, which is the indistinction of optimization.

优或次这对立概念之间不存绝对分明界限，这就是优化模性。

Finally,the tall, imposing figure sighed deeply and placed the astrolabe on a table that was no longer there, andvanished.

最后，这高大、引人注目身影松了口气，把星盘放到张早已不存子上，消失了。

Because the ideal “rigid joint” and “hinged joint” are inexistent, the stiffness of any connection types is between ideal rigid joint and hinged joint.

因为理想刚节点和铰接点是不存，任何连接形式刚度都是介于理想刚接和完全铰接之间。

By using Taylor's formula, the article deduces the sufficient condition of the existent extreme value and the necessary condition of the inexistent extreme value of trinary function.

通过利用泰勒公式推导出判断三元函数极值存充分条件和极值不存必要条件。