In the paper, the effects of the ion type of polyacrylamide on retention of fines in the corrugated medium paper and the properties of the paper were studied.

研究了不同离子类型的几种聚丙烯酰胺对瓦楞原纸中细小组分的留着作用以及其对纸张性能的影响。

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It is assumed that the reader of this paper has medium to high knowledge level of directory service concepts and management experience.

本文假设读者在目录服务概念和管理经验方面具有中级到高级的知识水平。

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Before paper was invented, slips of bamboo were the most important writing medium.

在发明纸张以前，竹简是最常用的书写介质。

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Smartly produced pages, and things on screens, impress us with an authority that springs from the resources needed to produce them in the old paper medium.

ECONOMIST: Gossip on the web

Newspapers, Mr Murdoch implies, must learn to understand their role as providers of news independent of the old medium of distribution, the paper.

ECONOMIST: The future of journalism: Yesterday's papers | The

But the custom developed of just using the paper receipts as the medium of exchange, with few if any showing up to demand the actual gold.

FORBES: Rethinking Money: The Rise Of Hayek's Private Competing Currencies