另外一个原因是不像其他欧洲国家，希腊缺乏森林和土地所有权的全面登记。
One reason is that Greece, unlike other European states, lacks a comprehensive register of forests and land ownership.
最简单的方法可以让你帮助我们的是加入OpenOffice.org项目的全面登记。
The easiest way for you to help us out is to join the overall OpenOffice. org project by registering.
首字母缩略词CAS指化学摘要登记号，美国化学会的一个部门提供全面的电子化学信息服务。
The acronym "CAS" stands for "chemical Abstracts service," a division of the American chemical Society that provides comprehensive electronic chemical information services.
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