Increased Productivity; Excellent suction performance; Ergonomic operation; Robustness and durability.
提高工作效率；吸水极佳功能；人力工程学设计；经久耐用。
The ideal ergonomic design is adopted in this unit and has easier operation and wider space.
符合人机工程学要求的理想设计，使操作更方便舒适，空间更广阔。
During design, the machine adopts ergonomic technology. The interactive user interface and flexible, simple control panel make the programming and operation become very relaxed and comfortable.
本机在设计过程中大量运用人机工程学技术，交互式的人机界面和灵活简便操作面板，使得编程和操作工作非常轻松舒适。
The utility model has the advantages that the streamline ergonomic design is adopted, the holding operation is comfortable;
它采用流线型人体工学设计，握持操作舒适；
According to index of performance, the operation performance of different pointing devices was compared. The implication of the results to the optimal ergonomic design of trackball was also discussed.
用绩效指数比较了不同指点装置的操作绩效，对追踪球的优化设计提出了建议。
According to index of performance, the operation performance of different pointing devices was compared. The implication of the results to the optimal ergonomic design of trackball was also discussed.
用绩效指数比较了不同指点装置的操作绩效，对追踪球的优化设计提出了建议。
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