An ancient Chinese drawing shows the use of a lever to facilitate the operation of the mortar and pestle (Figure 6).

一幅古代中国画中展示了使用杠杆推进臼和杵的操作(图6)。

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As comparing with adopting traditional optical lever method to measure Young 's modulus of elasticity E. Using optical sensor is much better in both operation and data precision.

对杨氏弹性模量E用反射式位移传感器与传统的光杠杆法测量进行比较，得出无论从操作方面还是数据的精确度方面都说明了光纤传感器法大大优于光杠杆法。

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Safety and easy operation: hidden air leaking hole for opening fixture cover easily while pulling up hand lever of the upper cover.

操作方便，安全：隐藏式泄气孔，拉起上盖把手即可打开治具，操作简易，安全性高。

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The touch tracer display for remote system control is located directly behind the shift lever for maximum comfort and ease of operation.

ENGADGET: Lexus LF-CC Concept shows the future of touchscreen interiors

The dashboard is divided into two distinct zones: an upper, Display Zone, with a multi-display screen located at an ideal distance for at-a-glance viewing, and a lower, Operation Zone, which allows access to the uniquely designed shift lever and an innovative touch tracer display for remote system control.

ENGADGET: Lexus LF-CC Concept shows the future of touchscreen interiors