Why use one device to select something on a different device when the manipulation is able to occur directly on the original device?

为什么在可以直接在原始设备上进行操作时还要用一个设备来选择另一个设备上的东西呢？

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Rotary kiln burner is an important thermal device for cement production, and its performance and manipulation will directly affect the production and quality of clinker.

回转窑燃烧器是水泥生产中重要的热工设备，其性能和操作的好坏将直接影响着熟料的产、质量。

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The improved device has been proved with convenient manipulation and high collection efficiency beyond 90%, which is applicable to all particle size collection from the scope of nano to micron.

改进后的装置操作简单方便，采集效率在90%以上，适用于纳米至微米范围所有粒径的颗粒的采集。

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The main shift has been to more direct manipulation as the device processes more natural inputs.

ENGADGET: Switched On: Token gestures

The Key Glove offers convenience for gaming, design, art, music, data entry, device control, 3D object manipulation, and a whole host of other applications.

FORBES: Wearable Computers with E-Textiles and Conductive Fabric