Aiming at the shortage on normal distributed project, this paper puts forward a kind of distributed system based on database replication technique.
针对一般分布式方案中存在的不足，构建了一个基于数据库复制技术的分布式系统。
The technique of aspherical optical replication is one of the techniques of producing optical aspherical surfaces with high efficiency and low cost put forward in 1980's.
光学非球面复制成型技术是于八十年代提出的一种高效率、低成本的非球面制造方法。
The technique of aspherical optical replication is one of the techniques of producing optical aspherical surfaces with high efficiency and low cost put forward in 1980's.
光学非球面复制成型技术是于八十年代提出的一种高效率、低成本的非球面制造方法。
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