This is an entirely computer-operated system which is very user-friendly.

这是一个完全由计算机操作的系统，非常好用。

《柯林斯英汉双解大词典》

This scenario demonstrates a smooth and friendly way to inform your user to wait while you retrieve data for them from a backend system.

本场景演示了在从后端系统为用户检索数据时，通知用户等待的流畅而友好的方式。

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They are user friendly and represent a user's view of the system and its behaviors.

用例对用户是友好的，它代表用户角度对系统和系统行为的观察。

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Even the most ardent supporters of Social Security would surely be dismayed by this complexity, which was developed over the years, presumably by Congressional staffers, looking to do good, but, apparently, with not the slightest concern about making the system minimally user-friendly.

FORBES: Thomas Jefferson Is Rolling in His Grave -- A Rant on Social Security's Complexity

Okay, okay, we're making good use of sarcastic italics, but we do have a point: we take such things for granted to the point where it might not have occurred to naysayers that just being able to minimize a window could make an operating system more user-friendly.

ENGADGET: Chrome OS review (version 19)

Make sure the system you pick is user-friendly and can be readily adapted to changing household schedules in order to avoid false alarms.

CNN: ASIANOW - TIME Money | Keeping It Safe | 11/99