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1.Having no practical purpose or use.
脱离实际的，空论的没有实际目的或用途的收藏指正
2.having or put to a practical purpose or use.
具有实际的目的或用途，付诸实际目的或用途。收藏指正
3.Theoretical or speculative without a practical purpose or intention.
纯粹理论的，学理上的纯理论的或推理的，无实际目的或意图收藏指正
4.dealing with a subject in the abstract without practical purpose or intention.
抽象的对待某学科，没有实际的目的或者意图。收藏指正
5.We must adhere to the principle of making study serve the practical purpose.
我们必须坚持学以致用的原则。收藏指正
6.Finally, the FCPN and MFCPN are used in a target tracing system of FLIR and TV camera for the practical purpose.
同时还对FCPN和MFCPN应用于前视红外 (FLIR)和可见光摄像机目标跟踪系统进行了应用研究。收藏指正
7.Scientific discovery and scientific knowledge have been achieved only by those who have gone in pursuit of it without any practical purpose whatsoever in view.---Max Planck.
殊不知，没有付出，哪来得到？收藏指正
8.Now, out of the blue, a writer who uses a language that has lost its practical purpose and "social status" here, has won the Nobel Literature Prize. Their excitement is understandable though there may be some wishful thinking on their part.
突然之间，这种在本地已失去实际应用价值与“社会地位”的语文，竟然与举世注目的诺贝尔文学奖挂上钩，作家们难免感到莫名的兴奋，尽管这里面或许有一种一厢情愿的情结。收藏指正
9.For the sake of breaking through the key technology of knowledge picking up and expression in DFM system so as to reach a practical purpose, on the basis of analyzing in detail the knowledge features of manufacturability and combining with the features expression of produce and components and the general representative method of knowledge, a kind of representative method for the knowledge of integrated manufacturability was put for ward, in order to enhance the efficiency of retrieval and calling and decrease the work amount of maintenance.
为突破DFM系统知识提取和表达的关键技术，达到实用目的，在详细分析可制造性知识特点的基础上，结合产品和零件的特征表达和知识的一般表示方法，提出一种集成性可制造知识的表示方法，以提高检索和调用效率，减少维护工作量。收藏指正
10.The practical and utilitarian purpose of the vocation education at that time was characteristic and successful.
其以“实用”、“实利”为出发点的职业教育宗旨，颇具特色，并取得了很大的成绩。收藏指正
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