A new type of the PZT driving device to realize the planar movement by using the bimorph oscillator as the driver was presented.
采用双压电晶片振子为移动机构的驱动源，提出可以实现二维平面移动的新型压电驱动机构。
A new type manual screw driver is provided, which removes operating inconvenience of traditional manual screw drivers and comprises a handgrip and a driver head.
新型手动螺丝刀，主要解决了手动螺丝刀操作使用不方便的问题。
A new type manual screw driver is provided, which removes operating inconvenience of traditional manual screw drivers and comprises a handgrip and a driver head.
新型手动螺丝刀，主要解决了手动螺丝刀操作使用不方便的问题。
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