Mattress plays an important role in people's life, this article studies the evolvement, types, processing technology and developing tendency of mattress.
床垫在人们生活中扮演着举足轻重的角色，本文探讨了床垫的演变、类型、制造技术和发展趋势。
This paper Outlines the developing tendency of HDTV technology and its implicit promoting on modern information industries by reviewing the chronology of HDTV.
本文在回顾HD TV简史的基础上，叙述了HDTV技术的发展趋势和它对近代信息产业的重大促进作用。
The essay introduces the advantages, using demesnes, equipments, softwares and system fabrication of digital proof, and also tells us the developing tendency of this technology.
本文介绍了数字打样技术的优势、应用领域、采用的设备、相关软件及系统构成，并对今后该技术的发展趋势作了简述。
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