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1)  secondhand book
旧书
1.
Firstly,it briefly introduces the from and distribution of the secondhand books market and researched the sources, the prices of the secondhand books, including the whole process of book purchasing, evaluating and vending.
 根据北京旧书市场的形成和分布情况,旧书的来源和价格,包括旧书的收购、作价、出售一系列运作过程,分析旧书市场的经营现状,商场售书和书摊售书的利弊,以及从业人员的素质对古旧书业发展的影响。
2)  old book paper
旧书刊纸
1.
The effect of flotation parameters such as flotation consistency,temperature,flotation time,air to pulp ratio,turbulence level(velocity of pulp flow),and pH on domestic old book paper deinking efficiency was studied by using a high-consistency laboratory pulper and a laboratory deinking cell developed by ourselves.
利用实验室研制的高浓碎浆机和浮选脱墨槽研究了国产废旧书刊纸脱墨浆的主要浮选条件。
3)  rejection of old-books
藏书剔旧
1.
This paper introduces the necessity of rejecting old-books in university library, analyzes the principle and scope of the rejection of old-books, expounds the implementing methods for rejecting old-books, and probes into the treatment of the rejected old-books.
介绍了了高校图书馆藏书剔旧的必要性,分析了藏书剔旧的原则和范围,论述了藏书剔旧的实施方法,探讨了剔旧书刊的处理等。
2.
This paper discusses on the important significance of the rejection of old-books from the storage of university library, and probes into how to do well the rejection of old-books from the storage of the library from aspects of determining the principle and scope of the rejection, selecting the methods of the rejection, and the problems needing attention in the rejection, etc.
论述了高校图书馆藏书剔除工作的重要意义,并从剔旧的原则与范围的确定、剔旧方法的选择以及藏书剔旧中应注意的问题等方面就如何搞好图书馆的藏书剔旧工作进行了探讨。
4)  Book weeding
图书剔旧
1.
Research on Book Weeding Expert System Based on Neural Network Ensembles;
基于神经网络集成的图书剔旧专家系统的研究
2.
With the use ofthis module,the prototype of book weeding expert system based on neural network ensembles is made primarily.
并将该模型用于图书剔旧系统中,初步建成基于神经网络集成的图书剔旧专家系统原型。
5)  Paperbound book
旧平装书
6)  old publishing industry
旧书业
补充资料:得亲旧书问近况以诗代书报之
【诗文】:
溪头日日弄潺湲,敢料余生竟得全!白简免劳中执法,青铜罢算小行年。
花前一笑频开口,林下深藏永息肩。
欲养金丹还嬾去,身今已是地行仙。



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