The lack of a database-level security model makes it difficult to fully leverage ZEO storage servers as clients have more or less unfettered access to the database and must therefore be trusted.
缺乏数据库级别的安全模型使得充分利用ZEO存储服务器变得非常困难，因为客户端或多或少地拥有对数据库的自由访问，因此客户端必须受信任。
In the current network-centric business model it is becoming increasingly difficult to validate a person's identity, control access, and maintain integrity and privacy of data.
在当前以网络为中心的业务模型中，验证个人身份、控制访问和维护数据的完整性与保密性变得越来越难。
What has often made the situation difficult for the customer (and for anyone troubleshooting these problems) is limited access to and understanding of troubleshooting tools and techniques.
由于难于获得和了解故障检修工具和技术，用户(及任何解决这些问题的人)经常陷入困境之中。
Increasing the supply of doctors, for example, would increase access to care but could make it more difficult to rein in costs.
例如，增加医生的供应，增加了保健的机会，但是这将使成本控制更加困难。
It's difficult to see the results of adding accessibility information without access to an at reader.
在不访问AT阅读器的情况下，很难看到添加可访问性信息的结果。
Maintaining a white finish over a length of time would present its own problems as a paint finish on such an exposed part of the house could require regular maintenance with difficult access.
况且，要它长时间的保持白色外观本身就会产生一些问题，因为在这块房屋外露的部分进行油漆粉刷是很难进行定期的维护保养的。
Although the village is remote and access by road is difficult, good communications from the field have been established with the Ministry of Health and WHO.
虽然该村庄偏远并且难以由公路进入，但是已建立现场与卫生部和世卫组织的良好通讯联络。
Mr Goldstone's team hopes to leave for Israel shortly, possibly as soon as the end of this week. But unless Israel grants visas, access will be difficult.
戈德斯通的团队希望能尽快离开以色列，最好是这周末，但是除非以色列同意签证，不然很难进入以色列。
This period of history has been called the Information Age because it makes available instant access to knowledge that would have been difficult or impossible to find previously.
我们称这个时代为信息时代，因为我们能够随时获得我们从前很难或者不可能获得的知识。
This technique enables extraction of fuel from small, difficult-to-access coal seams, and could double the world's current coal reserves.
这项技术可以从窄而难以进入的煤层中提取燃煤，并可能使目前世界上的煤炭储量增加一倍。
Severe resource constraints and difficult terrain limit access to health-care facilities in many parts of Nepal.
尼泊尔很多地区存在着严重的资源制约因素和不利的地形条件，这些不利因素限制了人们使用医疗设施的能力。
Even today, the depth and steepness of Black Canyon make it extremely difficult for humans to access.
即使在今天，黑峡谷的深度和陡度也使得人类难以企及。
Although intraosseous (IO) access is often used in critically ill patients with difficult or delayed IV access, the efficacy of IO administration has not been investigated until recently.
尽管骨髓内给药在静脉给药困难或有延误的危重症患者中较为常用，但是其有效性直到近期才有研究。
In terms of construction, the remoteness of the site makes access difficult to certain technologies essential for a building of this size and complexity.
从构造角度来说，由于基地地处偏远，拥有如此这般规模和复杂度的建筑物所必需的某些技术难以得到实施。
It's very difficult to completely secure a piece of software that must run on the end users device if they have full access to the device.
它完全安全的软件必须运行在终端用户设备如果他们有充分的对设备的访问是非常困难的。
It's quite difficult to be happy when you don't have access to the basic necessities of life.
如果无法满足基本的生活需求，你很难会感到幸福的。
There are a lot of tables and views in MIS. It is very complex to administrate the access privileges of these database resources and it is very difficult for a user to administrate them directly.
在大型MIS系统中建有许多表和视图，对这些数据库资源的存取授权管理十分复杂，而由用户直接管理数据库中的资源的存取授权十分困难。
Then, this paper deeply investigated the three difficult problems of the system, such as exception handling, security right controlling and heterogeneous database access.
然后，就系统的三个难点问题——异常处理、安全权限控制和异构数据库访问进行了深入的研究。
The problems of the radiated emission for outdoor signal lines during the operation of ADSL access equipment are difficult to resolve.
在ADSL接入设备的运行过程中，户外信号线引起的辐射发射超标问题比较突出，难以解决。
The dam for the Nuozhadu Hydropower Station is located in an area with small valley coefficient, poor construction conditions and difficult arrangement of access roads to dam crest.
糯扎渡水电站大坝所处地段的河谷系数小，施工条件差，上坝道路布置困难。
This paper introduces commonly used methods of ID Authentication in a campus network and finds a common problem that it is difficult to control access unauthorized within the broadcast domain.
介绍了常见的园区网用户身份认证方法，并指出它们普遍存在的一个问题：在一个广播域内非法接入难以控制。
You're talking about access to technology and certainly an opportunity for treatment of outlying, remote regions becomes difficult as well.
因为使用新的治疗方法必须拥有相应技术，对于偏远地区来说当然就有难度。
In that case, there are huge amounts of dada distributed over different storage resources, so it is very difficult for users to access them.
在这种情况下，海量数据分布在各种异构的存储资源上，给用户的访问增加了难度。
Many of these 12 panoramas cannot be seen from a road or are very difficult to access, even on foot.
许多这些优美的全景在公路上是看不到的，或者说要开车靠近也很困难，甚至于步行也做不到。
These robust, highly visible models indicate sensor status in difficult to access areas, and they solve a variety of assembly line applications by indicating and verifying part selection.
他补充道：“这些耐用的高可视化的指示灯指示难以进入领域传感器状态，通过指示和验证部分选择解决了多种装配线应用。”
The isolation of the remote areas because of distance and lack of transport facilities is compounded by the difficult access to information media.
边远地区距离远，交通不便，使得其与外界隔绝。而信息的不通畅使隔绝更加严重。
Knowledge of adolescent pupils from non-formal channels, it is difficult to guarantee a correct and comprehensive access to information, while the 'Green Ai hut' appearance will change this situation.
中小学生的青春期知识如果从非正规渠道获得，就难以保证正确、全面地获取信息，而‘青艾小屋’的出现将改变这一现状。
If malicious code somehow gains access to that area of memory, it is more difficult to make use of the data.
如果恶意程序码以某种方法取得该记忆体区域的存取权，则使用此资料会较困难。
If malicious code somehow gains access to that area of memory, it is more difficult to make use of the data.
如果恶意程序码以某种方法取得该记忆体区域的存取权，则使用此资料会较困难。
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