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。
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.
PITA模型支持对话独立性、界面自适应、应用的可移植性、任务的可控制性并能给用户及时的反馈。
PITA model supports dialogue independence, adaptive interfaces, application portability, controlled task and give user immediate feedback.
如果用户可以找到并将所有的计划书收集在一起，同时允许每个计划书保持独立性及其与特定客户的相关性，那会很方便。
It would be very convenient if the saleswoman could find and gather up all such proposal letters, while allowing each one to retain its uniqueness and association with its particular client.
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