I still doubt whether the practical value of this project really exists.

我仍然怀疑这个项目是否有实际价值。

This paper studied sensitivity, specificity and practical value and significance of ELISA in the detection of antibodies against Fasciolopsis buski in human sera.

研究了姜片吸虫成虫冷浸抗原检测姜片吸虫病患者血清抗体的敏感性和特异性及其在流行病和临床上的应用价值。

This design is of great practical value.

该设计有很大的实用价值。

In fact, this method has some practical value.

在实际应用中具有较高的实用价值。

The experiments on animals are of no practical value.

这些实验是没多少现实意义的，器官移植所面临的真正困难是如何解决术后的体内排异问题，而这是动物们帮不上忙的。