In Part 1, we'll look at user interface (UI) design, which is one of the most important aspects of online applications.

在第1部分中，我们将着眼于用户界面(UI)的设计，这是在线应用程序最重要的方面之一。

youdao

Represents the horizontal and vertical line segments that are dynamically created in the user interface (UI) to assist in the design-time layout of controls in a container.

表示在用户界面(UI)中动态创建以便在容器中辅助控件的设计时布局的水平和垂直线段。

youdao

Provides a base class that can be used to design value editors that can provide a user interface (UI) for representing and editing the values of objects of the supported data types.

提供可用于设计值编辑器的基类，这些编辑器可提供用户界面 （UI），用来表示和编辑所支持的数据类型的对象值。

youdao

User interface (UI) is one of the most impactful manifestations of human centred design in our modern society.

BBC: Windows 8 and the Surface tablets: The experts weigh in

The UI design of the Razer Synapse software is cool and minimalist looking, but clicking through the interface becomes awkward at times, and I think improvements could be made to make navigation through the various tabs a more fluid user experience.

FORBES: Macroing With The Razer DeathStalker Ultimate in Eve