实例允许用户拥有独立自主的环境，用于生产、测试和开发。
Instances allow users to have separate, independent environments for production, test, and development purposes.
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.
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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