For example, if you decide to display help information as a tool tip rather than in a separate window that would open by user request, the tool tip might not be accessible to screen reader users.
例如，如果您决定将帮助信息作为工具提示，而不是在由用户请求打开的单独的窗口中，工具提示可能对屏幕阅读器用户是不具有易访问性的。
The atom at the tip of the chain emitted electrons onto a surrounding phosphor screen, rendering an image of the electron cloud around the nucleus.
碳链末端的原子发射电子到周围的磷光屏，得到原子核周围电子云的图像。
In the next tip, I will show how these and other techniques can be used to screen XML documents efficiently.
在下一篇技巧中，我将介绍如何利用这些技术和其他技术来有效地筛选(screen)XML文档。
Each tip shows how to perform a very specific task and provides step-by-step instructions with detailed code snippets and screen shots.
每个提示显示了如何执行特定任务，并提供详细的代码段和屏幕快照的分步指导。
When everyone in unison replied, "an iceberg, " he displayed a beautiful high-definition image of an iceberg on the screen: the tip of the iceberg was clearly visible above the water;
而非展示图表，图形和表格来展开演讲，当大家在齐声回答“冰山”时，总裁在大屏幕上展示出了一张冰山的高清图像：水面之上的冰山清晰可见，更多部分则是水面之下依稀可见的巨大冰块。
The fracturing of high permeability zone is a vital breakthrough of hydraulic fracturing. We need to pretest the production response ahead of the tip screen-out fracturing design.
高渗透层压裂技术是水力压裂的一个重要突破，在进行高渗透压裂设计时需对方案的增产效果进行预测。
The fracturing of high permeability zone is a vital breakthrough of hydraulic fracturing. We need to pretest the production response ahead of the tip screen-out fracturing design.
高渗透层压裂技术是水力压裂的一个重要突破，在进行高渗透压裂设计时需对方案的增产效果进行预测。
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