这层额外的映射允许使用固定的引用名称开发客户机应用程序，并在开发时灵活地映射到实际的 EJB。
This extra level of mapping allows a client application to be developed using fixed-reference names and flexibly map to actual EJBs at the deployment time.
本文结合数控五轴刻字机介绍了数控机床在大批量专用加工中适用的可变程序固定存储器，存储元件采用E型磁芯。
The present paper introduces a programmable ROM, which is used in a 5spindles (numerically controlled) engraving machine, with E-type magnetic core as storage element.
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