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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The CD-HSS box drawing experimental device included four parts of die structure, lever mechanism, hydraulic and electric control system were designed based on the CD movement principle.
I'm always up for a challenge " the founder of Microsoft said in his highly-produced challenge video while drawing sketches for an ice-bucket-dump lever."