If no document was found, the user sees a message stating that no document with such a keyword exists.
如果没有找到文档，用户将看到一条消息指出没有带有该关键字的文档。
If no such cookies exist, the user is forwarded to the portal login page so he can enter his credentials.
如果不存在此类cookie，则会将该用户转到该门户的登录页，以便他能够输入其凭据。
What is important is that there is no such thing as a "non-branded" services. A user cannot have a "non-experience."
重要的是对于顾客来说，不存在什么“杂牌”产品或服务，用户无时不刻不在体验。
With such tight deadlines, developers might bypass usability because they assume there's no time to do testing or other user research.
在这么短的开发时程中，开发者可能会因为假设他没有足够时间，而忽略过使用性测试或研究。
Overhead tasks such as database setup and user interface design require no small set of skills.
开销（overhead）任务，如数据库设置和用户界面设计，需要不少的技巧集。
In addition, some visa programs, such as the overwhelming majority of visitor visas, will be unaffected by the move to user-pays to ensure there is no impact on tourism.
另外，有些签证类别将不受改为“谁签证谁付费”政策的影响，例如绝大多数旅游签证类别就不受影响，以确保旅游业不受影响。
This is because a composite value type, such as a user-defined structure, has no valid default value.
这是因为复合实值型别(例如使用者定义的结构)没有任何有效的预设值。
In other cases, such as Transmission Control Protocol (TCP) and User Datagram Protocol (UDP) sockets, there is no directory listing.
在其他情况下，如传输控制协议(TCP)和用户数据报协议(udp)套接字，不存在相应的目录清单。
In other cases, such as Transmission Control Protocol (TCP) and User Datagram Protocol (UDP) sockets, there is no directory listing.
在其他情况下，如传输控制协议(TCP)和用户数据报协议(udp)套接字，不存在相应的目录清单。
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