He spent his life chasing after shadows.

他用毕生精力追求不存在的东西。

Partyism was nonexistent in those days.

党派制在那时候并不存在。

The desistance of crime cannot exist in indirect intentional crime.

间接故意犯罪不存在犯罪中止,肯定论者的观点是难以成立的。

Is there only nothingness after death?

人死后什么都不存在了吗？

Since her illness, other people had become shadowy and had no real existence for her.

自从她生病后，其他人在她眼中变得很，似乎不存在了。

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

优或次这一对立概念之间不存在绝对分明的界限，这就是优化的。

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

总理谈到了全国普遍存在的不安全。

Such inequalities are found in every stratum.

这类不公平的现象存在于社会的每一个阶。

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

最后，这个高大的、引人注目的身影松了口气，把星盘放到一张早已不存在的桌子，了。

The micell of block copolymer conjugates releases drugs followed the rule of first order equation and had no burst effect.

键合物胶束体外释药遵从一级动力学，不存在突释现象。

Liberal ideas of free trade played a role in German unification, which was preceded by a customs union, the Zollverein.

事实不存在客观的、判决这些要求是否正确的标准。

No other trigraph sequence exists. Each ? that does not begin one of the trigraphs listed above is not changed.

不存在其他三连符。每个不是述某个三连符开始的?将保持不变。

Normally, obligor can restitute only from the assignor if the creditor's right assigned doesn't exist or obligor revokes the contract.

让与的债权不存在或者债务人解除合同时,债务人通常只能够向债权出让人请求返还。

First, it is assumed that the polytope exists in the system matrix, input matrix and measure matrix of the stale space model.

首先，假定多胞型不确定参数存在于状态空间型的系统矩阵、输入矩阵和量测矩阵中。

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

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

There is no influence of aerodrome on the calibration of airplane radio compass error with aerophotograph, but it causes some effects on measurement accuracy.

空中照相法校正飞机无线电罗差不存在场地影响,但在实施过程中,又引入了一些其它影响测量精度的因素。

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在的充分条件和极值不存在的必要条件。

However, NC devices have high prices and there’re some volatile factors when NC system is under the practical operation, which incumber the testing and operation process.

但数控设备的成本较高，同时数控系统在实际运转过程中存在一些不稳定因素，给运行调试工作带来不便。

When the illuminance rose, the photic decomposition rates of the natural anthocyan pigments rose as well, but there was no linear relation between photic decomposition rate and illuminance.

随着照度的增大，花青素类色素的光降解速率也增大，但光降解速率常数的改变和照度之间不存在线对应关系。

In vitro antigen presentation assays, in vivo administration of the bromodeoxyuridine coupled to flow cytometry assays assessed intra-islet T cell activation in the absence or presence of B cells.

离体实验测定抗原呈递活；在体动物实验，用溴脱氧尿苷处理后以流式细胞术检测B细胞（存在或不存在时）对胰岛内T细胞活的影响。