A. equipment system parts: split keyboard control, simple, convenient, easy to learn the split keyboard operation, users can quickly and flexibly grasp the use of equipment, more independent.

设备系统部分：分体键盘控制，简洁、方便、易学的分体键盘操作，用户能很快灵活掌握设备的使用方法，独立性更强。

youdao

There are various kinds of keyboards to choose from, including a split keyboard which is nice for a large tablet where you want to thumb type.

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The concept in question is quite simple: a primary LCD would be visible at all times, and when the occasion called for another panel or two, they'd simply slide into view, ready to serve as a number pad, or settings control, predictive text display, or even a full-fledged split keyboard.

ENGADGET

It may also shed light on images of a split-keyboard phone that recently leaked online.

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