Current grid security infrastructure establishes the security policy space inside a VO mainly on basis of the public key infra-structure and distributed trust model.
现有的网格安全体系GSI主要是通过公钥体系及建立在其上的分布式信任模型来建立与维护虚拟组织内部的安全策略空间。
How to maintain integrity and validity of security information is studied through policy space and a dynamic access control algorithm based on security information is presented.
基于此，研究了如何维持在策略空间穿越中的安全信息的完整性与有效性，提出了基于安全信息的动态访问控制算法。
This policy sets the stage for the Department of Commerce to take over the management of traffic in space.
这项政策为商务部接管太空交通管理奠定了基础。
Officials at the White House announced a new space policy focused on managing the increasing number of satellites that companies and governments are launching into space.
白宫官员宣布了一项新的太空政策，其重点是对各大公司和政府向太空发射的越来越多的卫星进行管理。
Space Policy Directive-3 lays out general guidelines for the United States to mitigate the effects of space debris and track and manage traffic in space.
《空间政策指令3》为美国制定了一般性指南，以减轻空间碎片的影响以及跟踪和管理太空交通。
A decision to withdraw from, or at least significantly reduce, an inherited policy could actually strengthen the leadership, by giving more space and energy to push through other ambitious plans.
决定取消——或者至少显著淡化——自己继承的某项政策，其实可能起到强化领导力的作用，因为它为推行其它雄心勃勃的计划留出了空间和精力。
The P8 administrator can then add more space to that storage area or adjust the storage policy so that a new storage area can be selected.
于是，P8管理员可以为这个存储区域增加更多空间，或者调整存储策略，允许选择新的存储区域。
This feature is available only when using the deferred page space allocation policy.
仅在使用延迟页面空间分配策略时，才能使用这种特性。
The default policy of AIX is deferred page space allocation.
AIX的缺省策略是延迟的页面空间分配。
Often the space issue is solved by using a log rotation policy, where logs are kept in several files that are truncated and overwritten as they reach a certain number of predefined bytes.
通常，可以通过使用日志轮换策略来解决空间问题，将日志保存在几个文件中，当这些文件大小达到某个预定义的字节数时，对它们进行截断和覆盖。
This feature is only available for the default deferred page space allocation policy.
这种特性只能用于缺省的延迟页面空间分配策略。
Garbage collection works in a number of configurable ways through the deferred page space allocation policy.
可以通过延迟的分页空间分配策略以多种可配置的方式执行垃圾收集。
The default policy of AIX 7 is deferred page space allocation.
AIX7的默认策略是延迟的分页空间分配。
And yet the jubilee of the Kennedy speech comes at a difficult time for American space policy.
肯尼迪讲话50周年正值美国太空政策的困难时期。
This policy, Nasa hopes, will free resources to invest in a new capsule and rocket capable of sending humans beyond the space station to destinations such as the Moon, asteroids and Mars.
宇航局希望，这一政策将解放资源，以便将更多精力投入到开发新的飞船和火箭，将人送上远于外太空的距离如月球、小行星和火星。
The White House is to develop a policy on the space object impact threat by October next year.
白宫准备在明年十月之前制定一项有关太空物质冲撞威胁的政策。
George Abbey, a former director of the Johnson space Centre and now a space-policy expert at Houston's Rice University, has similar worries.
乔治·阿贝，原约翰逊太空中心的主管，现休斯敦莱斯大学太空策略专家，也有相似的焦虑。
Bigelow said his analysis was based on two years of observing the space policy landscape, rather than personal discussions with the Chinese.
比奇洛说，他的分析是基于对两年之内太空政策环境的观察，而不是他与中国人的私下讨论。
The Watson allocation policy maintains free space in the heap as nodes in two separate "red-black trees"
Watson分配策略在两个单独的 “红黑树” 中以节点的形式维护堆中的空闲空间
A study for the American Enterprise Institute, a think-tank, cites a Chinese theorist who argues that China should adopt a policy of overt deterrence in space.
智库美国企业研究所（American EnterpriseInstitute）的一份研究提及了一名中国理论家，他认为中国应该采取太空公开威慑政策。
With the space of the accounting policy increasing constantly, more and more questions have arisen in choosing accounting policy.
随着会计政策选择的空间不断增大，会计政策选择出现的问题越来越多。
The discoveries in the meteorite helped shape policy and exploration efforts at the United States space agency, NASA.
陨石里面的这些发现帮助美国太空机构NASA形成了策略和探索方向。
If we are unable to provide previously confirmed space, we shall provide compensation to the affected Passengers in accordance with applicable law and our policy.
如果我们未能向您提供您事先已定妥的座位，我们将依照可适用的法律和我们的规定对您进行补偿。
Moreover the completeness and the flexibility of the relevant accounting criterion leaves listed company the space to carry on the choice of the accounting policy.
而相关会计准则、制度的不完备性和灵活性，使上市公司有了进行会计政策选择的空间。
Making use of the declassified documents of the United States, this article presents a study of American outer space policy.
本文在综合运用美国解密文件的基础上，探讨冷战期间美国的外层空间政策。
The different choices of national economic industry policy and the different results of taxation policy implementation provide operation space for taxation plan.
由于国家经济产业政策的选择，使税收政策实施结果不尽一样，这就为税收筹划提供了可操作的空间。
The different choices of national economic industry policy and the different results of taxation policy implementation provide operation space for taxation plan.
由于国家经济产业政策的选择，使税收政策实施结果不尽一样，这就为税收筹划提供了可操作的空间。
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